Mary Mason Shaw married William Begg McGowan. He was a railway labourer. 

At the time of her death in Glasgow Royal Infirmary on 11 May 1961, age 69, she resided at 480 Rutherglen Road.  Mary was pre-deceased by William.

The death certificate informant was her brother-in-law, James O’Neill.  A possible conclusion is that Mary and William had no children.