Jackson Tractors
Erval Jackson build four-wheel drive tractors in Edgeley, North Dakota in the early 1970s. Jackson also manufactured swathers and swather transports. After production stopped, Jackson continued operating a repair shop until 1982.
Jackson Tractors
| Jackson 4-53 | Power: 160 hp | Date of manufacture : 1968 - 1970 |
| Jackson 4-44 | Power: 210 hp | Date of manufacture : 1969 - 1970 |
| Jackson 534 | Power: 265 hp | Date of manufacture : 1969 - 1972 |