John McDonald (b. 30 Oct 1774 Scotland - died abt 1840 Jefferson Co GA) had a wife named Mary reportedly. I do not know anything about her, except that she is supposed to be my ancestress, the mother of Rachel E Ann McDonald (b. 1806 probably Jefferson Co GA) who married Robert Littleton Albritton. Rachel and Robert are my ancestors for sure. The information concerning John and Mary McDonald as the parents of Rachel come from Beth Gay, http://www.electricscotland.com/webclans/beth/mcdonald.htm
and she only lists one or two sources in her writing. So I am unsure about a lot of this.