Hello
Thanks for all your searches and suggestions - never ceases to amaze me how much info roots chat finds. Does it look as if Ellen Mailey and Hugh McLaughlin were not married when Susan and Ellen were born in Greenock in 1907 and 1908, and latterly married in 1910??
1st attachment Ellen born 1908, 2nd attachment death of Ellen (the mother nee Mailey) in 1921, 3rd birth of Susan in 1907
Sorry for delay in replying,
Cheers
Murphyz