Robert Welsh Bisset Russell

['Trish']

Help!  I am trying to find Robert Welsh Bissett Russell! I have Robert marrying Margaret Hamilton on 11 Dec 1911 at Shettleston Glasgow.  His father on the marriage certificate was Joseph Russell & his mother Janet Robson/Robertson.  I located Janet Robson/Robertson on 1891 Census (338 Duke Street Camlachie) with son Robert age 13, Mother Catherine Robson/Robertson & daughter Catherine.  Robert then must have been born 1877/78 Glasgow.  So far I have been unable to locate his birth.   Janet was born around 1841 in Glasgow, her mother's name was Catherine Robson/Robertson nee ? born around 1808 Glasgow, Father unknown Robson/Robertson.  I would be grateful for any assistance Regards Pauline