Thanks for the US census info, thomasker2, this is much appreciated. As I was unable to find any marriage of Marion Sutt/Peter Murray in Britain, did wonder if they had met and married in America or elsewhere in the world. The couple married after 1779 but before 1784 when their son was christened in Scotland. Marion was certainly married to Peter (by wording of baptism register). After this baptism they disappeared again. So the head of household from about 1780 onwards would have been Peter Murray, and that is not such an uncommon name. Regards, Sue