Marshall Farm tractors by year
Marshall, Sons and Company was a British manufacturer of tractors and farm machinery during the twentieth century. Marshall built steam and gasoline traction engines and launched the Field Marshall diesel tractor after World War II. Marshall purchased Leyland in 1982, rebranding the tractors with the Marshall name. Tractor production ceased in 1992.
| Model | Power | Years |
| Colonial | unknown | 1908 - 1918 |
| 15/30 | unknown | 1931 - 1933 |
| 18/30 | unknown | 1932 - 1936 |
| 12/20 | 22 hp[B] | 1936 - 1938 |
| M | 26 hp | 1938 - 1946 |
| Series I | 36 hp | 1945 - 1947 |
| Series II | 40 hp | 1947 - 1949 |
| Series III | 40 hp | 1949 - 1952 |
| Series IIIA | 40 hp | 1952 - 1957 |
| MP6 | 70 hp | 1956 - 1961 |
| 802 | 82 hp | 1982 - 1984 |
| 184 | 18 hp | 1987 - 1997 |
| 264 | 25 hp | 1987 - 1997 |
| 752 | 74 hp | unknown |
| 754 | 74 hp | unknown |
| 852 | 85 hp | unknown |
| 854 | 85 hp | unknown |
| 954 | 94 hp | unknown |
| D642 | unknown | unknown |
| D644 | unknown | unknown |
| D742 | unknown | unknown |
| D744 | unknown | unknown |
| D842 | unknown | unknown |
| D844 | unknown | unknown |
[B]: Engine power estimated from belt horsepower. See individual tractor data listing for power details.