He served in Quebec as a loyalist to the crown, staunchly protecting its interests in the colony.
The Lord Lyon Depute granted Thomas's request, and the arms implicitly claim descent as the senior descendant of the Ainslies of Dolphinston.
In the Thirteen Colonies, Ainslie appears to have been the British Customs Officer presiding over the Duty that provoked the Boston Tea Party.
[citation needed] His first wife, Mary Potts, was twenty-five when she died.
His daughter of that union, Christian, married his business partner, John Young (seigneur)[3][1] On 15 August 2012, the registration of the Armorial Bearings of Thomas Ainslie was given under the seal of the Canadian Heraldic Authority.