Avery Farm tractors by power
The brothers Cyrus and Robert Avery founded the Avery company in 1874 building cultivators and planters (note that Avery should not be confused with B.F. Avery & Sons). By 1891 the company had located to Peoria, Illinois, and begun building stream tractors. Avery first entered the tractor market with the Farm & City in 1909, which looked more like a truck. Avery introduced a line of tractors but fell into trouble during the Depression. The company reorganized several times, but finally closed for good at the onset of World War II.
| Model | Power | Years |
| 5-10 | 11 hp[B] | 1920 - 1922 |
| 7-14 | 15 hp[B] | unknown |
| 8-15 | 16 hp[B] | unknown |
| 8-16 | 17 hp[B] | 1916 - 1922 |
| 12-20 | 22 hp[B] | 1920 - 1922 |
| 18-36 | 27 hp | 1916 - 1922 |
| 12-25 | 27 hp[B] | 1912 - 1922 |
| 15-25 | 27 hp[B] | 1922 - 1924 |
| 14-28 | 31 hp[B] | 1919 - 1922 |
| 20-35 | 38 hp[B] | 1923 - 1927 |
| 25-50 | 55 hp[B] | 1916 - 1923 |
| 40-80 | 88 hp[B] | 1913 - 1920 |
| Farm & City | unknown | 1909 - 1919 |
| Ro-Trak | unknown | 1938 - 1941 |
| Track Runner | unknown | 1922 - 1925 |
[B]: Engine power estimated from belt horsepower. See individual tractor data listing for power details.