HI.....In the 1851 census Susan is living with her sister Mary and her husband David McLean at 1 Broad Close Greenock...1861 I still have some searching to do I think I found her but not sure....1871 Susan and her husband Alexander McKellar were at 106 West St Backland Greenock..1881 they were at 97 Houston St Kinning Park, Glasgow.... 1891 114 Macher St Plantation, Glasgow... 1901 114 MacLean St Plantation, Glasgow....
Susan and Alexander had only one child Julia who sadly died as a infant.....I have a few more bits but not sure of it....
Cheers
Carol