Thomas Dunbar and Susannah A. (Susan) Smith were married. They were divorced. Susannah A. (Susan) Smith, daughter of David Smith and Lucy Gross, was born on 14 July 1822 in Swan's Island, Hancock County, Maine, USA. She died on 28 June 1896 at the age of 73.
Thomas Dunbar-3209 and Susannah A. (Susan) Smith-1430 had the following children: