People Marion McMath Marion McMath Marion McMath from . About Family Husband Sir John Sinclair Of Stevenson, 1st Bt. Children She has two children, Elizabeth and John . Marion McMath's Children (2) Elizabeth Sinclair John Sinclair Of Stevenson, Younger Comments There are no comments yet. Enter your name here: Enter your email here: Enter your message here: Your message is required. Markdown cheatsheet. Submit