“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Mancos in Montezuma County, Colorado — The American Mountains (Southwest)

1892 Horse-Drawn Pull Grader

1892 Horse-Drawn Pull Grader Marker image. Click for full size.
Photographed By Tom Bosse
1. 1892 Horse-Drawn Pull Grader Marker
With thanks and appreciation to Pete and Yvonne Doerfer for loaning the following items: For display only - please do not climb on this equipment.

1892 Horse-Drawn Pull Grader
J.D. Adams invented the first successful leaning-wheel pull grader in 1885, which he called the “Little Wonder”. It was a small, two-wheeled contraption with a blade set at a fixed angle, capable of angling its wooden wheels to one side. Though he had no formal training as an engineer, Adams’s machine was a massive technological advance in the process of road building and maintenance. The initial model was intended to be pulled by a team of horses or mules.

Suddenly all other road grader manufacturers were using Adams’ “leaning wheel principle” in their devices. The success of the Little Wonder led the way for the introduction of Adams’ “Road King” model in 1896. The Road King was a four-wheel all-steel grader with an eight-foot blade and wheels capable of leaning in either direction. It could be pulled by a team of horses, or mules or adapted for towing by steam engine.

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was brisk and by the 1890s Adams had established a production company to make graders and steel highway bridges. The company later expanded their line of road building machinery to include elevating graders, sheepsfoot rollers, dozers, grader attachments, pull and rotary scrapers, force-feed loaders, and welding equipment. Though the Adams Company headquartered in Indianapolis, it eventually grew to include a Canadian affiliate (J.D. Adams Ltd.) with offices in Ontario and Manitoba.

J.D.’s brothers, William and Roy Adams, took over the business and ran it together until 1940, when William died. After 1940, Roy continued to control the bulk of the business with the help of the company’s board of directors. In 1955, J.D. Adams & Company became a division of Letourneau-Westinghouse, and at that time, ceased manufacturing products.

1928 McCormick Deering 15-30 Gear-Drive Tractor
Pete Doerfer’s father brought this tractor to the valley for use on the farm. This tractor was built by the International Harvester Company of Chicago from 1921 to 1934 in the Milwaukee Works Factory. An improvement and time saver over horse drawn equipment, this tractor introduced “power farming” to Mancos Valley farmers. Original models would have had a grey body and red wheels.

In 1922 the revolutionary 3-plow International 15-30 Gear Drive
1892 Horse-Drawn Pull Grader Marker image. Click for full size.
Photographed By Tom Bosse, May 24, 2018
2. 1892 Horse-Drawn Pull Grader Marker
was renamed the McCormick Deering 15-30. In early 1923 it was International Harvester’s only tractor model as the 2-plow International 8-16, 3-plow Titan 10-20, and 4-plow International 15-30 chain drive became discontinued to be badged as an International, or as Deering, or McCormick. Throughout the production run the nickname 15-30 became ever popular and commonly known with farmers across most regions, especially throughout the States and Canada.

In 1929 the 15-30 engine was given a ¼” larger bore, increasing displacement to 425.3 ci, and higher rpm, 1,050, to increase the power output to 40.7 belt and 30.1 drawbar. In export markets the revised model was usually called the 22-36 and it is frequently referred to as that in such regions as Britain. Although in the US the model and serial number plate continued under the name 15-30, for exports a different type of serial number plate was applied and stamped as 22-36. Instead of the usual “15-30 Tractor No.”, these plates used a basic “Model” and alongside it “Serial No.” and stamping boxes underneath each. As from 1929,, the model printed in these stamping boxes became 22-36.
Topics. This historical marker is listed in these topic lists: AgricultureIndustry & Commerce. A significant historical year for this entry is 1892.
Location. 37° 20.702′ 
J.D. Adams Company Advertisement image. Click for full size.
3. J.D. Adams Company Advertisement
N, 108° 17.334′ W. Marker is in Mancos, Colorado, in Montezuma County. Marker is at the intersection of Grand Avenue (Business U.S. 160) and South Main Street, on the right when traveling east on Grand Avenue. Touch for map. Marker is in this post office area: Mancos CO 81328, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within 9 miles of this marker, measured as the crow flies. The Columbine Bar (within shouting distance of this marker); Mancos Opera House (about 300 feet away, measured in a direct line); Bauer House (about 500 feet away); Mancos High School (approx. 0.2 miles away); Cedar Grove Cemetery Veterans' Memorial (approx. 0.6 miles away); Mancos Valley (approx. 7.2 miles away); Southwest Survival (approx. 8½ miles away); Mesa Verde Country (approx. 8½ miles away). Touch for a list and map of all markers in Mancos.
J.D. Adams Company Advertisement image. Click for full size.
4. J.D. Adams Company Advertisement
1928 McCormick Deering 15-30 Gear-Drive Tractor image. Click for full size.
5. 1928 McCormick Deering 15-30 Gear-Drive Tractor
Credits. This page was last revised on August 19, 2018. It was originally submitted on August 4, 2018, by Tom Bosse of Jefferson City, Tennessee. This page has been viewed 1,203 times since then and 356 times this year. Last updated on August 18, 2018, by T. Patton of Jefferson, Georgia. Photos:   1, 2, 3, 4, 5. submitted on August 4, 2018, by Tom Bosse of Jefferson City, Tennessee. • Syd Whittle was the editor who published this page.

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Sep. 24, 2023