Toward the end of 1838, the army reassigned Emerson to Fort Snelling. By 1840, Emerson's wife Irene returned to St. Louis with their slaves, while Dr. Emerson served in the Seminole War. While in St. Louis, she hired them out. In 1842, Emerson left the army. After he died in the Iowa Territory in 1843, his widow Irene inherited his estate, including the Scotts. For three years after John Emerson's death, she continued to lease out the Scotts as hired slaves. In 1846, Scott attempted to purchase his and his family's freedom, but Irene Emerson refused, prompting Scott to resort to legal recourse.