Hi Chris,
Hope you can help me with this one!  I have been told that my Great Great Grandfather was named William Constantine,  a silk top-hat manufacturer from Scotland (Glasgow). He married Elizabeth ?? They had a daughter named Mary Constantine in 1848.  I have been able to find a William Consterdine and Elizabeth in the 1841 census, living at Bredbury Green, Stockport. and neighbours James & Ann Cock and family living next door.  I believe Ann was Elizbbeth's sister.  I think their maiden names was Williamson.  William Constantine passed on by the 1851 census.
Could you find out  anything about William Constantine & Elizabeth??? e.g. fathers names, occupations, and mothers names etc.  I would be so greatful for anything you may find.  I have come to a brick wall on this one.  I cannot find anything about William. 
Thanks!  KitKat