Thomas McCreath was born in Glasgow in 1877, the second of the eight children of Thomas Thom McCreath (1852-1910) and Jane Reid.

He emigrated to Canada in 1905 with his brother, John Thom McCreath, who married Barbara McCoig.

Thomas married Margaret (surname unknown). 

Thomas and Margaret are buried at Blackfalds Cemetery, Alberta

Thomas died on 29 October 1971, Margaret on 2 February 1980.

It is not known if there were issue.