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Special Collections Home > Collections > Caterpillar Tractor Collection

Left side of header. Cal Poly Pomona's Caterpillar Tractor Collection

Welcome! to Cal Poly Pomona's collection of antique Caterpillar Tractor photographs. The collection was donated by Mr. Paul Hofer in June of 2001. In addition to the photographs below you can also take a look at transcrips of an interview Mr. Hofer and our Special Collection's librarian Danette Cook Adamson conducted discussing the photographs by clicking here.

In addition, here's a cover letter relevant to the history of these great photographs.

Image1

Spring of 1940

"Fertilizing a Cucamonga vineyard in the early spring of 1940. Cucamonga Peak provides a majestic backdrop. Courtesy of Paul B. Hofer and Sons." - James Hofer

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Image2

May 17, 1954

Caterpillar Diesel D2 Tractor pulls a Dyer spring tooth cultivator in 240 acre vineyard at Cucamonga, California.

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Image3

Description not available.

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Image4

Description not available.

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Image5

June 16, 1953

Caterpillar Diesel D2 Tractor pulls John Deere-Killefer furrower in grapefruit grove 7 miles north-east of Redlands, California.

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Image6

June 3, 1954

Caterpillar Diesel D2 Tractor pulls 6'9" Dyrr offset disk working in orange grove in Corona, California.

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Image7

Description not available.

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Image8

March, 1952

Caterpillar Diesel D2 Tractor pulls 9' offset disk disking cover crop in valencia orange grove near East Highlands, California.

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Image9

July 7, 1954

Caterpillar Diesel D315 Engine drives a Pacific centrifugal pump pumping water for sprinkler type system of irrigating bean field.

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Image10

April 15, 1938

"Caterpillar" Diesel D2 Tractor pulling 9' offset cover crop disk covering 22 acres per 9 hour day on 1.25 gals. 5.75¢ fuel per hour. Saving $2.00 per day over former power.

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Image11

April 30, 1946

"Caterpillar" Diesel D2 tractor with Towner 6'9" disk, disking in orange grove. The No. 12 Motor Grade (Owned by the City of Ontation, California) is grading ditches along highwawy.

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Image12

March 1, 1956

Caterpillar D2 Tractor pulls a Domries disk furrow. Wokring in grapefruit orchard, south of Thermal, California. Total of 90 acres in orchard, all under irrigation.

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Image13

July 7, 1954

Caterpillar Diesel D8800 Engine drives a peerless deepwell pump pumping water for irrigating vineyard. Sprinkler type system used.

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Image14

Description not available.

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Image15

April 15, 1938

"Caterpillar" Diesel D2 Tractor pulling 9' offset cover crop disk covering 22 acres per 9 hour day on 1.25 gals. 5.75¢ fuel per hour. Saving $2.00 per day over former power.

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Image16

April 13, 1954

Caterpillar Diesel D2 Tractor pulls 7'6" Bernice offset disk disking cover crop in orange grove. Total of 150 acres in oranges.

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Image17

Description not available.

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Image18

April 1929

Garett & Co., producers of wines and wine tonics - owners of 2 Tens. Pulling 9 point John Deer orchard cultivator in high gear in loose sandy soil.

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Image19

Description not available.

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Image20

Description not available.

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Image21

April 15, 1938

Two "Caterpillar" Diesel RD4 Tractors each pulling 5-12" vineyard plow, plowing in 900 acre vineyard near Cucamonga, California. Working 10 hours day each tractor consumes 2 gals. 5-1/2¢ fuel per hour. Both tractors cover total 35 acres a day.

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Image22

May 17, 1954

Caterpillar Diesel D2 Tractor pulls a Towner cultivator working in a vineyard south of Etiwanda, California. Total of 110 acres.

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Image23

April 1929

Garett & Co., producers of wines and wine tonics - owners of 2 Tens. Pulling 9 point John Deere orchard cultivator in high gear in loose sandy soil.

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Image24

July 7, 1954

Caterpillar Diesel D6 Tractor pulls disk plow preparing seedbed on 1600 acre farm northwest of Ontario, California. Pulling in 4th gear, covering approximately 2.5 acres per hour.

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Image25

June 3, 1954

Caterpillar Diesel D2 Tractor pulls 6' Towner offset disk cultivating in young orchard in Corona, California.

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Image26

June 28, 1954

Caterpillar Diesel D2 Tractor pulls 6'9" Dyrr offset disk in navel orange orchard.

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Image27

July 7, 1954

Caterpillar Diesel D315 Engine drives a Gardner-Denver centrifugal booster pump pumping water for sprinkler type system of irrigating alfalfa field.

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Image28

June 16, 1953

Caterpillar Diesel D2 Tractor pulls John Deere-Killefer furrower in grapefruit grove 7 miles northeast of Redlands, California.

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Image29

July 7, 1954

Caterpillar Diesel D315 Engine drives a Pacific centrifugal pump pumping water for sprinkler type system of irrigation bean field.

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Image30

Description not available.

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Image31

July 7, 1954

Caterpillar Diesel D6 Tractor pulls disk plow preparing seedbed on 1600 acre farm northwest of Ontario, California. Pulling in 4th gear, covering approximately 2.5 acres per hour.

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Image32

April 15, 1938

Two "Caterpillar" Diesel RD4 Tractors each pulling 5-12" vineyard plow, plowing in 900 acre vineyard near Cucamonga, California. Working 10 hours day each tractor consumes 2 gals 5-1/2¢ fuel per hour. Both tractors cover total 35 acres per day.

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Image33

Description not available.

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Image34

June 9, 1953

Caterpillar Diesel D4 Tractor pulls John Deere-Killefer offset disk disking under corn refuge. Working one mile south of Indio, California. This ranch consists of 40 acres in row crops and 100 acres in citrus.

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Image35

July 24, 1953

Caterpillar Diesel D2 Tractor pulls John Deere scraper leveling ground in vineyard west of Coachella, California. Pulling in second gear covering approximately 10 acres in nine hours.

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Image36

April 30, 1946

"Caterpillar" Diesel D2 Tractor with 6' goble disk, disking one of the vineyards in California.

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Image37

May 17, 1954

Caterpillar Diesel D2 Tractor pulls a Dyer spring tooth cultivator in 240 acre vineyard at Cucamonga, California.

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Image38

June 3, 1954

Caterpillar Diesel D4 Tractor pulls a 9' Towner offset disk in orchard in Corona, California.

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Image39

July 7, 1954

Caterpillar Diesel D315 Engine drives a Gardner-Denver centrifugal booster pump pumping water for sprinkler type system of irrigation alfalfa field.

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Image40

June 3, 1954

Caterpillar Diesel D2 Tractor pulls 6' Towner offset disk cultivating in young orchard in Corona, California.

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Image41

July 7, 1954

Irrigated vineyard near Ontario. California. A Caterpillar Diesel D8800 Engine drives a Peerless pump pumping water for sprinkler system.

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Image42

November 25, 1953

Caterpillar Diesel D2 Tractor pulls a custom made rose digger digging from 25,000 to 30,000 per eight hour day.

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Image43

April 1939

"Caterpillar" Diesel D2 Tractor with 6' offset disk covering 20 acres per day on 1 to 1.25 gals. 5.25¢fuel per hour, 8 hours a day. They used a Twenty-Eight about 12,000 hrs. Have been "Caterpillar" owners since 1925.

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Image44

March 1939

Two "Caterpillar" Diesel D2 Tractors disking in 5000-acre vineyard at Guasti, California. Working 9 hours a day, each D2 uses 1-1/4 gallons of fuel per hour.

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Image45

July 24, 1953

Caterpillar Diesel D2 Tractor pulls John Deere scraper leveling ground in vineyard west of Coachella, California. Pulling in second gear covering approximately 10 acres in nine hours.

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Image46

July 24, 1953

Caterpillar Diesel D2 Tractor pulls John Deere scraper leveling ground in vineyard west of Coachella, California. Pulling in second gear covering approximately 10 acres in nine hours.

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Image47

June 9, 1953

Left to right: Mr. W. W. Kelly, owner and Mr. Grady Scott, super intendent for 140 acre ranch one mile south of Indio, California. A Caterpillar Diesel D4 Tracto is used for general operations. Testimonial concerns durability, economy and ealer service.

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Image48

June 9, 1953

Caterpillar Diesel D4 Tractor pulls John Deere-Killefer offset disk disking under corn refuge. Working one mile south of Indio, California. This ranch consists of 40 acres in row crops and 100 acres in citrus.

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Image49

October 14, 1941

"Caterpillar" Diesel D2 Tractor hauling grapes from sidehill vineyard to highway where they are loaded onto trucks and hauled to winery. 120 boxes per trip. Has two D2 Tractors.

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Image50

November 25, 1953

Caterpillar Diesel D4 Tractor pulls a Towner 9'9" offset disk preparing seedbed for oats.

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Image51

March 1952

Caterpillar Diesel D2 Tractor pulls 9' offset disk disking cover crop in Valencis orange grove near East Highlands, California.

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Image52

July 24, 1953

Mr. H. R. Waggner, superintendent of the Sunny Acres Ranch west of Coachella, California. A Caterpillar D2 Tractor and Tool Bar is used for work in vineyard and citrus grove. Testimonial concerns purchase of equipment, performance and dealer service.

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Image53

Description not available.

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