| Business partner | John Deere |
| Business partner | Leonard Andrus |
| Start Date | 1843-00-00 |
| End Date | 1848-00-00 |
| Notes | In 1843, he entered a partnership with Leonard Andrus to produce more plows to meet increasing demand. By 1848, Deere dissolved his partnership with Andrus and moved the business to Moline, Illinois, which offered advantages of water power, coal and cheaper transportation than to be found in Grand Detour. |