Early career After receiving his commission, Van Buren served with the
2nd Infantry Regiment at
Jefferson Barracks,
Missouri and
Fort Dearborn,
Illinois from 1827 to 1829. Van Buren and his wife Angelica left Washington in March 1841 and visited with Angelica's family in
Sumter, South Carolina, where Angelica gave birth to their son Singleton.
Return to Army At the outbreak of the
Mexican–American War in June 1846, Van Buren was reappointed in the army as a paymaster with the rank of
major. After Mexico's surrender, Scott appointed Van Buren as the military representative empowered to discuss peace terms with Mexican authorities. He also gave testimony on Scott's behalf and the inquiry resulted in Scott's exoneration. In spite of his absence while serving in the military, Van Buren was still close to his father. His wife and he enjoyed extended stays at the former president's
Lindenwald estate and spent winters in South Carolina. ==Personal life==