I believe that you both have common ancestry.
Father of Christina & David - Enos/Aeneas/Angus McMillen
Mother of Christina & David - Catharine Hill
Parents married 3 June 1804 in Kingston
Enos/Aeneas/Angus McMillen born 1 May 1778 Scholarie, NY
Father Ewen/Hugh McMillen born Scotland about 1745
Mother Christiana Cameron born Scotland
Father Ewen/Hugh one of five known Corriebuigh brothers who came to the USA in 1773 from Scotland. I am descendant from one of Ewen/Hugh's brothers - Alasdair (Alexander) McMillan. Ewen/Hugh's family spelled surname McMillen, Alasdair, Angus, and Dougald spelled surname McMillan, Finally brother Peter spelled surname McMullen.
Regards
Anne