Replying to Forarian - thanks for this - not sure how I have managed to miss it. Trying to trace Catherine McMillan G G grandmother - turns up in Liverpool in 1868 with a young baby - claims to be widow. Baby grows up having close connections with "cousins" whose grandparents I have successfully backtraced to Cardross in 1851 (their births locations being giving a Morvern) and also to same street in 1841 where they are living as children with an apparently unrelated young couple. The "grandparents" were Hugh and Ann McMillan born Movern 1826 and 1823. I know from a death certificate that Ann's father was Donald. Hugh died between 1851 - 1855 and no known death record. In 1841, there were other siblings John (b 1831) Janet (b 1832) Catherine (b.1833) and Angus (b.1836) I am therefore working on the assumption (until I prove otherwise!) that the Catherine born 1833, sibling to Hugh and Ann is my missing Catherine. Trying now to identify Catherine on the interim census for 1851 and 1861. Many thanks for your help