I am looking for any information on Thomas Sinclair who married Margaret Duncan on the 21 of March, 1823, in Belmont Co., Ohio. I am trying to find out who their children and parents were. My G Grandparents was Samuel Francis who married Elizabeth Ann Sinclair in Muskingum Co., Ohio, on 5 Feb. 1846. I am trying to find out if Thomas Sinclair and Margaret Duncan were Elizabeth Ann Sinclair's parents. I thank you for any help. Richard Swank