Charles W. Hart and Charles H. Parr founded the Hart-Parr Company. First located in Madison, Wisconsin, in 1901 it was relocated to Charles City, Iowa, the hometown of Hart. Production started on tractor manufacturing in 1901 with the first tractor being sold in 1902. From 1902 to 1919 Hart-Parr built large, oil cooled tractors. These tractors were used to plow the virgin prairies of North America and to power various machines to help bring in the bounteous harvest of grain to feed the growing population of the the United States. In 1918 a new water cooled and smaller tractor was put into production, leaving behind the old concept that in order to have horsepower you must have a large and often times clumsy machine. Hart-Parr is credited for coining the word TRACTOR. These two men are known for being the Founders of the tractor Industry. In 1929 four companies merged to form the new Oliver Farm Equipment Company, putting an end to the old Hart-Parr name.

STATIONARY ENGINES

Year	Serial Number
1898 - 1904	1 - 1305

17-30

Year	Serial Number
1901	1205
1902	1206
1903	1208-1219
1904	NONE BUILT
1905	1346-1347
1906	1435-1454

18-30

Year	Serial Number
1903	1207 only

22-45

Year	Serial Number
1903	1220-1245
1904	1306-1345
1905	1364-1393
1905	1415-1434
1906	1455-1604

30-60

Year	Serial Number
1907	1605-1810
1908	1811-2014
1909	2325-2331
1910	2432-3310
1911	3311-3999
1912	4212-4711
1913	4814-5261
1914	5262-5440
1915	5441-5521
1916	5522-5551
1917	5552-5640
1918	5641-5715

40-80

Year	Serial Number
1908	2015-2018
1909	2019-2024
1910	2025-2100
1911	2101-2200
1912	2201-2275
1913	2276-2300
1914	2301-2324

15-30

Year	Serial Number
1910	2332-2352
1911	2353-2382
1912	2383-2431

60-100

Year	Serial Number
1911	4000-4100
1912	4101-4111

20-40

Year	Serial Number
1912	4112-4211
1913	4714-4763
1914	4764-4813

12-27

Year	Serial Number
1914	5816-5992
1915	5993-6039

RED DEVIL

Year	Serial Number
1914	6219-6244
1915	6245-6743
1916	6744-6943

A (15-30)

Year	Serial Number
1918	8401
1919	9384
1920	13026 TO 17915
1921	18470
1922	18851

B (10-20)

Year	Serial Number
1921	35001
1922	35217

C (10-20)

Year	Serial Number
1922	21001
1923	21393
1924	21899

E (12-24)

Year	Serial Number
1924	36001
1925	36075
1926	36601
1927	37195
1928	38119

E (16-30)

Year	Serial Number
1924	22501
1925	22602

F (16-30)

Year	Serial Number
1926	26001
1927	26360

H (12-24)

Year	Serial Number
1928	39602
1929	39687
1930	42278

H (1B-36)

Year	Serial Number
1927	28851
1928	29636
1929	1 TO 215
1930	89159

MODEL 22-40

Year	Serial Number
1923	70001
1924	70021
1925	70114
1926	70251
1927	70494

MODEL 28-50

Year	Serial Number
1927	70501
1928	70719
1929	70968
1930	71401