Thomas married Mary QUIGLEY, daughter of James QUIGLEY and Martha ROSS, on 7 September 1866 in 15 Binnie Place, Glasgow, Scotland. (Mary QUIGLEY was born about 1847 in Rutherglen Loan, Glasgow, Scotland.)
The marriage was performed after banns according to the forms of the Established Church of Scotland. The minister was Gilbert Stewart. The witnesses were Edward Tweedly (Tweedlie written first then crossed out) and Helen Tweedly (ditto).