Nebraska Tractor Shows, 1913-1919 and the Beginning of Power Farming
Piedmont Gardens, 33 Linda Avenue Oakland, California 94611-4816
Reprinted from Nebraska History, Summer 1983, with permission of
Nebraska State Historical Society, Lincoln, Nebraska
Prior to the advent of the gasoline tractor in the early 1900s,
the American farmer had become familiar with power machinery in the
form of steam engines. From 1807 to 1849 stationary steam engines
mounted on skids were used to saw wood, gin cotton and thresh
grain. From 1849 to 1875 these engines were mounted on wheels and
were pulled from one location to another by a team of horses. From
1875 to 1920, the steam traction engines were self-propelled and
were used for threshing grain, plowing, lumbering and hauling
freight. Much of the sod stretching from Canada to Mexico was
broken with huge steam engines, some of which weighed 15 tons and
pulled 12 plow bottoms.
However, these leviathans needed to be supplied with large
amounts of water and coal. They were awkward to handle, presented a
fire hazard and required the skill of an expert mechanic. Usually
an engineer in the community did custom work for numerous
neighbors. These engines were manufactured by such well-known firms
as J. I. Case, Avery, Nichols and Shepard, Minneapolis, Frick,
Reeves, Holt, Best, Gaar-Scott, Rumely and Port Huron. The prices
averaged $100 for each horsepower developed; thus a 20-horsepower
steam engine in 1900 would sell for approximately $2,000. However,
steam engines ushered in an age of power farming and this trend was
accentuated with the arrival of the internal combustion tractor at
the turn of the century.
A series of tractor shows staged in the Midwest from 1913 to
1919 encouraged the growth of power farming in the United
States.1 These public demonstrations tended to prove
that tractors rather than horses and mules would be the wave of the
future in American agriculture. The special events were held at
selected sites reaching from Texas to the Canadian border.
On certain days as many as 60,000 people watched tractors
working under field conditions. During these exhibitions some
farmers were so impressed that they pulled out their checkbooks and
bought tractors on the spot. At a four-day tractor show at Fremont,
Nebraska, in 1915, one manufacturing company sold 100
However, this type of advertising was not original. For many
years the manufacturers of farm machinery had demonstrated their
products at state fairs. In addition the plowing contests held near
Winnipeg, Canada, from 1908 to 1913 had proved that field trials
could elicit wide public attention. These annual contests sponsored
by the Winnipeg Industrial Exhibition Association featured a corps
of judges who rated the performance of each engine and awarded
gold, silver, and bronze medals to the winners. The American
Thresher-man in September, 1911, listed the scores of 31 tractors
and steam traction engines. Editor Bascom B. Clarke noted that
manufacturers, engineers, and farmers had come from all parts of
the continent to witness the application of mechanical power to
Meanwhile in Nebraska the owners of the Omaha Daily Bee were
also publishing the Twentieth Century Farmer, a weekly journal
edited by Thomas F. Sturgess. After observing the Canadian plowing
contests, he concluded that these trials had been designed
primarily for the manufacturers of huge steam and gasoline tractors
built for use on the large farms in the Northwest. He reasoned the
time had come to initiate tractor shows which would demonstrate the
practicality of smaller tractors on the corn-belt farms of the
With this objective in mind, Sturgess selected Fremont,
Nebraska, as a site for a tractor show to be held September 8-12,
1913. George F. Wolz, president of the local Commercial Club,
promised substantial support in making local arrangements. Later T.
F. Sturgess recalled:
‘We selected Fremont as the site of this demonstration and
invited various tractor manufacturers to bring their machines and
show the farmers. . .what their tractors would do. The
manufacturers responded enthusiastically and the farmers turned out
by the thousands to see the machines at work.’5
This event was given generous publicity. Writers for the
Twentieth Century Farmer boasted that this show would be the
largest exhibition of power farming ever shown in America. Forty
tractors would plow a 500-acre field. Farmers would see tractors
with enough power to plow the ground to a depth of 14 inches, thus
allowing the soil to absorb more of the annual rainfall. In
addition, tractors would eliminate the hired man, making for a
saving of $600 annually, as well as horses which cost $72 a
year to feed.6 The Fremont Herald announced special
attractions planned for visitors: a tractor parade down Main
Street, an automobile promenade, an evening coronation ball
featuring music by the Omaha Symphony Orchestra, a get-acquainted
party for factory representatives, dog show, poultry exhibit, comic
review by local firemen, and a free watermelon feed (400 melons,
each weighing 40 pounds, in cold storage in the
brewery).7 The morning ceremonies would begin with the
firing of a cannon.
Tractor headquarters was located on the Coad Ranch two miles
west of town. Here each manufacturing company occupied a tent
equipped with running water and a telephone system. In the forenoon
company representatives passed out literature, gave sales talks,
and supervised their engines as they performed various types of
belt work. In the afternoon 40 tractors entered the field and
plowed 6 acres in less than three hours while a crowd of 4,000
people watched.8 To get a better view farmers
walked behind the plows, often stopping to measure the depth of the
furrows. Some of the tractors in operation included the Rumely,
Russell, Hart-Parr, J. I. Case, Kinnard Haines, Hackney, Wallis,
Holt, Leader, Aultman Taylor, Emerson Brantingham, Ward, and
International Harvester. Professor George E. Condra of the
University of Nebraska at Lincoln took moving pictures of the
action later shown by Pathe News in thousands of theaters across
The Fremont Tri-Weekly Tribune on September 17, 1913, reported
that an agricultural engineer had come all the way from India to
witness the tractor meet. Five thousand people had attended a
barbecue where four Negro cooks had roasted an ox. The banks in
town had closed to permit employees to take part in these special
events. The paper stated that ‘hundreds of automobiles lined
the roads along the field and hundreds of persons were unable to
get onto the land at the close of the day’s work when the
machines were lined up for the moving picture man. Never before in
the history of the country has such a large crowd assembled for a
This spectacular was repeated in the fall of 1914. This time the
entrants included 60 tractors built by 30 companies. 10
It was estimated that 2,500 automobiles brought visitors to the
grounds, including 500 people from Kansas, Oklahoma and the
Dakotas. Large crowds followed a big Caterpillar tractor built by
the Holt Manufacturing Company of Peoria, Illinois. Twenty-four
behemoths pulled 14-inch plows cutting a swath 28 feet wide and
seven inches deep in dry gumbo soil. Experts estimated that it took
115 horsepower to perform this task.11
Another attraction, sponsored by the Dupont Company, consisted
of exploding dynamite to loosen up the sub-soil for the purpose of
creating a seed bed which would hold more moisture. Meanwhile the
Twentieth Century Farmer proudly pointed to the Fremont event in a
headline. ‘The Largest Power Farming Exhibition Ever Conducted
in the World.’12
The Third Annual National Power Farming Demonstration in 1915
attracted 60,000 people to Fremont, where 43 manufacturing
companies provided 84 tractors of various models, makes, and
sizes.13 Sales during the show reached $500,000. A
writer for the Fremont Herald described the city as a ‘charming
place’ where automobiles purred down the streets in a continual
procession, while the railroad companies offered special excursions
from such Nebraska towns as Norfolk, Hastings, York, and North
Platte. In the evenings visitors might listen to William Jennings
Bryan on the Chau-tauqua circuit or attend a wrestling match. Pathe
News and the Universal Film Company took thousands of feet of film
for national distribution.14
Journalists, artists, and photographers were on the scene and
the services of the Associated Press and Western Union were
available.15 J. B. Bartholomew, president of the Avery
Company of Peoria, Illinois, told a reporter, ‘I was counting
on you to put on the biggest show in the country and you have not
disappointed me.’ 16 The sales manager for the
same company, E. R. Rowe, said, ‘The Fremont shows have done
more for the tractor business than any one thing.’17
Alexander Legge, general manager of the International Harvester
Company exclaimed, ‘This has been the greatest demonstration.
The number of actual sales will excel everything of its kind ever
The fourth annual tractor show in Fremont in 1916, however,
produced the most spectacular results. Since the previous
exhibitions had been so successful, the Tractor Manufacturers
Association had decided to sponsor eight shows in eight states in
1916. The first, near Dallas, Texas, July 18-22, was followed by
stops at Hutchinson, Kansas; St. Louis, Missouri; Fremont,
Nebraska; Cedar Rapids, Iowa; Bloomington, Illinois; Indianapolis,
Indiana; and finally Madison, Wisconsin, in early
In this series the Fremont extravaganza proved the most
impressive. Here 50 tractor companies provided 250 tractors to work
1,200 acres of land. 20 The value of all machinery
on the grounds was placed at $1,000,000, while sales reached
$1,300,000. During daily demonstrations these tractors, with a
combined horsepower of 8,953, plowed 100 acres in 50
minutes.21 It was an awesome sight.
The attendance doubled that of any previous year, with 60,000
people on the grounds on August 10. The Fremont Herald the
following day ran the banner line, ‘Enormous Crowds at Tractor
Show.’ 22 There were 8,000 automobiles parked
on an 80-acre field, while traffic backed up for miles. One newsman
cheerfully reported that there had been only eight car accidents
during the day. Although the heat was intense and clouds of dust
moved over the terrain, men, women, and children faced the elements
with fortitude. John Wunder-lich of Cedar Rapids, Iowa, vowed he
had never seen anything like this:
Fremont and Omaha had been taxed to handle the crowds, Last
Wednesday, Fremont was eaten out of house and home. The crowd drank
the well dry, ate every sandwich it could find, drank all the pop
and soft drinks and even drank the brewery dry. Two wagon loads of
hot pop were commandeered by the crowd two blocks from the show
ground and it was drunk on the spot. Two carloads of watermelons
were sold, each cut in eight pieces and each slice sold for ten
cents. One thousand, five hundred chickens were devoured by the
largest crowd in Fremont history.23
The Nebraska Farmer said the city had been ‘taken by
storm.’ Restaurants and cafes were unable to feed the mob.
Visitors almost bought out grocery stores, bakeries, and butcher
shops and left the shelves bare.24 The Omaha Daily
News noted that the hordes had come from seven different
Several prominent people made appearances, including Cyrus H.
McCormick, president of the International Harvester Company, who
thought the tractor show was the best he had ever seen.
Henry Ford, the car-manufacturing magnate, and his son, Edsel,
were also on hand. The brought an orchestra which performed each
evening at the high school, and motion pictures produced by their
company were also shown. During the day Henry Ford spent his time
shaking hands with farmers and supervising his mechanics, who were
operating three Fordson tractors. However, Ford said they were not
taking orders because his machines were still in the experimental
stage. In an interview with the Omaha Daily News, he mentioned that
his dream was to see the world at peace and a farm tractor which
would sell for less than $200.26 One reporter noticed
that the ‘Detroit Motor King’ did not spend his time in the
hotel lounge talking to business executives and drinking champagne
or smoking cigars. Instead he preferred the outdoors, once sitting
on a stack of grain in a field discussing farming with a couple of
After the United States entered World War I in 1917, the demand
for tractors increased because of the need to produce more food. As
a result, less advertising was needed to sell farm machinery.
Consequently the Tractor Manufacturers Association limited its
shows to one in Fremont in 1917, one in Salina, Kansas, in 1918,
and a final one near Wichita, Kansas, in 1919.28
There were many other smaller tractor shows sponsored by local
implement dealers in most of the grain-growing states. Some of the
most important ones were at Champaign, Illinois; Spokane,
Washington; Minot, North Dakota; and Sioux Falls and Aberdeen,
South Dakota. 29 By 1920, however, tractors had
ceased to be a novelty and farmers could observe their operations
in most parts of the country. The sales of tractors had risen from
14,000 in 1914, to 36,000 in 1916, to 164,500 in 1918, and to
203,204 in 1920.30
In retrospect it seems obvious that this series of tractor shows
accelerated the introduction of power farming in the United States.
Not only did these events thrill hundreds of thousands of people,
but they spread the tractor news through the press to millions of
Americans. The cumulative effect was to assist the pro-tractor
crowd in the debate with the pro-horse advocates controversy which
raged among the rural folk for many years. The horse lovers
insisted that work animals were less costly than tractors because
they lived off the land, they reproduced, and they were objects of
genuine affection. As one farmer put it, ‘I will not stand by
and see the horse, which has been a good friend of man since the
days of Jesus Christ, become annihilated by a lifeless, spiritless,
and unfeeling machine.’31 Detractors pointed
out that tractors broke down frequently, requiring expensive
repairs, mired down in soft spots, and created a horrible roaring
noise. They were luxuries similar to yachts, polo ponies, and
private schools for girls. In 1910, the editor of the Wall Street
Journal insisted that farmers who bought tractors were ‘damn
In rebuttal, the tractor owners claimed their engines would
reduce hard labor, encourage young people to stay on the farm,
eliminate hoboes and transients looking for farm work, and would
work unremittingly, without asking for holidays, shorter hours, or
a raise in wages. They would not step on farmers’ toes or
switch a tail in his face. A writer for the Twentieth Century
Farmer on July 19, 1916, attempted to praise the tractor in
Boys now take life rather easy Not so many chores to do. Only
half as many horses To attend the whole year through. Not a
shoulder to gall to worry Not so many nags to clean. They can sleep
a little longer Since we plow with gasoline.
The Old Sol may do his damnedest He can’t make the tractor
sweat. Horse flies stop to look it over But they do not make it
fret. Do not need to waste time resting Cannot flounder that
machine. We can turn the soil right lively Since we plow with
Furthermore, the tractor shows proved that this industry was
still in the experimental stage. Since engineers would not agree on
how to design successful tractors, they built machines of great
diversity the results of trial and error. At the Fremont show of
1916 the tractor sizes varied from the tiny Avery 5-10 horsepower
to the six-cylinder Twin City weighing 27,700 pounds and rated at
60-90 horsepower. This leviathan was equipped with a step ladder on
the side of the motor in order that the operator could reach the
spark plugs. The Big Four tractor built in Minneapolis had drive
wheels eight feet in diameter and tanks which held 110 gallons of
water, 77 gallons of kerosene, and five gallons of oil. The
flywheel alone on some tractors weighed over a
Some companies produced tricycle models with two rear-drive
wheels and one steering wheel in front. These included the Wallis,
Happy Farmer, Peoria, Albaugh-Dover, the small Avery, the Case
10-20, and the Bull, which was advertised as the ‘Bull with the
Pull.’ Some tractors such as the Lawter and Moline 8-12 had two
drive wheels in front and a steering wheel behind. The Pioneer,
Hart-Parr 15-22, and the Emerson Brantingham 12-20 had only one
rear drive wheel, while the Gray engine was driven by a drum five
feet wide. The Joliet, the Hackney, and the Rumely 12-24 tractors
had plows bolted under the tractor frames, while the Moline and
Joliet machines featured an extended steering wheel which permitted
the driver to sit on the cultivator and still steer the tractor.
The Line Drive Tractor built in Milwaukee was driven with a pair of
lines just as one would drive a team of horses. Tractor motors
varied from one, two, four, and six cylinders while transmissions
were powered by gears, chains, and friction-drive clutches. Speed
of travel ranged from two to three miles an hour and prices varied
from an Avery model at $365 to the Caterpillar at
Obviously, this diversity confused farmers, making it difficult
to distinguish between machines of merit and junk. At Fremont in
1916, there were 50 different tractor companies displaying models,
while another 100 firms scattered across the country were not
represented. Between 1915 and 1920 over 400 new tractor companies
had been established.35 Many businessmen made
honest efforts to produce engines of quality, but others, imbued
with a get-rich-quick mania, merely purchased motors, magnetos,
carburetors, and radiators from other companies and assembled them
on a chassis.
During the 1913 Fremont show 21 tractors equipped with Waukesha
motors built in Milwaukee, Wisconsin, provided power for one-third
of all tractors in the demonstration.36 A visitor’s
guide to the Fremont exhibition in 1916 provided a short
description of each manufacturer’s models which revealed that
many firms had bought various tractor parts from sub-contractors.
For example, the Tom Thumb tractor built in Minneapolis had a
Waukesha motor, a Bennett carburetor, a Dixie ignition system,
Splitdorf spark plugs and a Perfex radiator. The Parrett tractor
made in Chicago came with a Buda motor, Kingston carburetor,
Champion spark plugs, a Perfex radiator, and SKF ball bearings,
while the Ford tractor from Minneapolis was equipped with a
two-cylinder Gile engine, a Wilcox carburetor, a Madison Kipp oil
pump, a Kingston ignition system, and J. D. Petticoat spark
Some shady characters sold stock in fly-by-night outfits which
might consist of little more than a machine shed, one
hand-assembled engine, an attractive catalogue, and a fast-talking
promoter who collected the cash, declared bankruptcy, and then fled
the scene. One ingenious firm hired a carpenter with the name of
Ford and made him a director of the company, then advertised its
works as the Ford Tractor Company of Minneapolis clever but
unsuccessful business venture.
Naturally, many of these companies folded and their names never
became famous. Such a list would include the Dayton-Dick Company of
Quincy, Illinois; the Tom Thumb and COD tractors of Minneapolis;
the Hay Press Tractor of Kansas City; the Waite tractor of Elgin,
Illinois; the Ward of Lincoln, Nebraska; the Western built at
Tulsa, Oklahoma; the Denning of Cedar Rapids, Iowa; and the
Standard tractor of Willmar, Minnesota.
Since most farmers knew little about tractors, they often bought
mechanical monstrosities which had never been tested. Reliable
information was usually unavailable. The Nebraska Farmer on August
18, 1917, claimed that the manufacturers of tractors offered little
specific information, leaving farmers in the position of
‘buyers beware.’ More testing by agricultural engineers
should have been done before the engines were put on the market.
Tractors might perform well on land which was level as a billiard
table, but perform poorly in hills, rocks, and brush. Farmers were
left in ‘confused and bewildered.38 The Cedar
Rapids Gazette on August 15, 1916, complained that the whole
tractor market was flooded with various types of freak
During these years the American farmer subsidized the tractor
industry by purchasing unreliable machines until the factory
officials were able to make improvements. However, the price for
research and development was often high. A farmer writing to the
Nebraska Farmer in August, 1918, complained that he had bought a
highly touted tractor. A salesman had told him that the engine
would provide power to plow nine inches deep and would last for
eight years. It proved a lemon. It worked for seven days, then
stood idle in the field. On the first day the fan belt flew off due
to a defective pulley. On the fifth day the transmission gears went
out, while on the sixth day the connecting rods punched two holes
in the crank-case. He reported these facts to the company officials
but was told that there had been no failure in the materials and
workmanship. He then asked for the help of a company expert, but
this request was promptly denied. He fumed, ‘You see, we are
suckers. There should be some way of taking such fellows to the
The author’s own family shared some of these woes. In
August, 1918, my oldest brother loaded most of his 10 brothers and
sisters into a Stud baker automobile and drove 60 miles to a
tractor show near Aberdeen, South Dakota. On arrival we saw the
tent village with flags flying and crowds milling about the
grounds. Some companies advertised by offering free cold drinks,
some dispensed literature and watch fobs while others gave away
walking canes calibrated for measuring the depth of the plowing. In
this carnival atmosphere 82 tractors roared off to plow 160 acres
every 80 minutes. We bought a 15-30 International tractor for
$1,900, which soon proved a mechanical disaster real ‘dog.’
The engine weighed five tons, and was 10 feet high with drive
wheels almost seven feet in diameter. Its cross-slung motor was
turned over with a three-foot crank, but this had to be done when
the operator raised himself off the ground, and while in mid-air
and with one foot braced against the angle iron lugs of the drive
wheel threw his entire weight against the crank. If this acrobatic
feat were successful, the motor started. The tractor ran on some
days, on others it ran part-time, and at times it failed to fire an
explosion all day long. Its clumsy steering system made it
difficult to turn around at the end of the field without knocking
down fence posts. It taxed nerves and depleted the pocketbook.
During the hard times of the early 1920s, my mother often alluded
to our bad judgment in buying an expensive tractor before its merit
had been proved.
During these years it became clear that farmers needed access to
some solid criteria on which to judge the advertising claims of
manufacturers. Cognizant of this need, Wilmot R. Crozier in 1919
introduced a bill in the Nebraska State Legislature which
stipulated that no manufacturer could sell a tractor in the state
without obtaining a permit. Permits could be issued only after the
same make and model tractor had been officially tested and its
performance had borne out the manufacturer’s claims. This bill
became law in 1919 and thus Nebraska established one of the first
consumer-protection agencies in the nation.41 Subsequently Nebraska
University tractor tests became a yardstick for comparing tractor
performance anywhere in the United States.42 Perhaps it is not
surprising that this legislation should appear in Nebraska where
the Fremont tractor shows had first generated so much attention to
this new industry.
Above all, the tractor shows during this seven-year period had
been part of a technological revolution dramatic shift from animal
power to mechanical power farming in American agriculture. This
transition reflected growing pains in a time of experimentation,
but it also was a time of excitement, a period full of human
interest events and withal an era when rural Americans adapted to
major changes in their way of life.
1. This paper was read at the 24th Annual Conference of the
Western Social Science Association meeting in Denver, Colorado,
April 21-24, 1982. The best research materials on this topic are
located in the Nebraska State Historical Society, 1500 R, Lincoln.
Here are the files of Twentieth Century Farmer, the farm journal
that sponsored the first Fremont tractor shows; the Fremont Herald;
and Omaha Daily Bee.
2. Twentieth Century Farmer (Omaha, Nebraska), September 1,
3. The American Thresher man (Madison, Wisconsin),
September 1, 1911,3-9. The judges checked 27 factors in making
their decisions. The intense competition resulted in considerable
ill will among company officials, which led to a waning interest in
the Winnipeg trials.
4. Twentieth Century Farmer, July 19, 1916, 19.
6. Ibid., August 30, 1913, 2. 7 Fremont Herald, (Fremont,
Nebraska) September, 1913, 1.
8. Twentieth Century Farmer, August 30, 1913, 6; October 4,
9. Fremont Herald, August 14,1914,4; August21, 1914, 1.
10. Nebraska Farmer, August 26, 1914, 809.
11. Ibid., August 5,1914, 770. This statement was placed in
an advertisement by Twentieth Century Farmer.
12. Twentieth Century Farmer, June 30, 1915, 2; July 21,
1915, 4; July 14, 1915, 2.
13. Ibid., September 1, 1915,4.
14- Fremont Herald, August 6, 1915, 1. Joe Stecher, the famous
wrestler of this era, appeared in matches in Fremont, and William
Jennings Bryan appeared on the Chautauqua platform on August 9,
15. Ibid., August 13, 1915, 1.
16. Twentieth Century Farmer, September 1,1915, 4.
17. Ibid. ,10.
18. Ibid., 10. F. Lee Norton, of the J. I. Case Threshing
Machine Company of Racine, Wisconsin, stated that the Fremont
Tractor Shows were the greatest educational event of their kind
ever held for the American farmer.
19. Ibid., July 19, 1916, 5.
20. Fremont Herald, August 11, 1916, 1.
21. Twentieth Century Farmer, August 23, 1916, 7.
22. Fremont Herald, August 11, 1916, 1.
23. Cedar Rapids Gazette, August 12, 1916, 1.
24. Nebraska Farmer, August 19, 1916, 863.
25. Omaha Daily News, August 9, 1916, 3.
26. Ibid., August 7, 1916, 1.
27. Fremont Herald, August 11, 1916, 6.
28. Nebraska Farmer, August 17, 1918, 1; August 2, 1919,
29. Dakota Farmer (Aberdeen, South Dakota), August 15,
30. R. B. Gray, ‘Agricultural Tractor Development in the
United States,’ Part II, 1920-1950. United States Department of
Agriculture, Agricultural Research Service, Agricultural
Engineering Research Branch of Beltsville, Maryland, 1956, 1.
31. John Edwin Lamborn, ‘A History of the Development
of Dry Farming in Utah and Southern Idaho’ (MA Thesis, Utah
State University, Logan, Utah, 1963), 123.
32. Twentieth Century Farmer, July 19, 1916, 8.
33. Twentieth Century FarmerFremont Demonstration
Visitors’ Guide to Farm Tractors, Bulletin No. 21, Omaha,
August 1,1916,31-page booklet.
35. Archer P. Whallon, ‘There Were Giants in Those
Days,’ Farm Quarterly, Spring, 1947 (Cincinnati, Ohio), 24. The
author states there were a total of 593 tractor companies in the
United States from 1900 to 1947.
36. Twentieth Century Farmer, August 29, 1914, 4- It is
interesting to note that almost all of the 21 tractors equipped
with Waukesha motors in 1913 failed to stay in business very long.
Companies that failed to survive include the Herder, Hume, Killen,
Knapp, Lawter, Denning, Strite, Gray, Chase, Joliet, Kuhlert,
McKinney, Smith, Nebada, Petro-Haul, Elliott, Swaney, and the
American Gas Company. Two exceptions are Allis Chalmers and Rumely
37. Twentieth Century Farmer, Fremont Demonstration
Visitors’ Guide to Farm Tractors.
38. Nebraska Farmer, August 18, 1917, 823.
39. Cedar Rapids Gazette, August 15, 1916, 1.
40. Nebraska Farmer, August 27, 1918, 1055.
41. Michael Williams, Farm ‘tractors in Color (Dorset,
England), 1974, 18-21.
42. Louis I. Leviticus, ‘Tractor Testing in the World,’
Agricultural History, January, 1980, 167-169.
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