Thankyou for your reply. Yes Alexander Murray (1773-1810) did marry Grace McWhirter. Their elder son, William, (1795-1874) emigrated to Canada in 1832. Grace followed and died in Montreal in 1848. My wife, nee Murray, is a gggranddaughter of William. Alexander was the ninth of eleven children of Andrew Murray and Ann Erskine. Any information on the parent(s) of Andrew would be a most welcome addition to the family tree that we have developed for our children.