David McCreath and Sarah Leith married on 30 April 1880 in Glasgow. They had three children:
Peter Leith McCreath (1881-1951). Married Catherine Robertson Whitecross.
Margaret (Maggie) McCreath (1882-??)
Sarah McCreath (1884-??)
In 1901 the family was listed at 72 Market Street, Calton, Glasgow
David McCreath 48 Head Tobacco Hand Spinner
Sarah McCreath 48 Wife
Peter L McCreath 20 Son Wholesale Newsagent
Maggie McCreath 19 Dau. Cigarette Maker
Sarah McCreath 17 Dau. Cigarette Maker
David died on 9 March 1909, age 56, at 57 John Knox Street, Glasgow. He was predeceased by Sarah.