Clan Douglas
Although long recognised as a Sept of Clan Keith through Thomas Dickson's paternal line, in July 2012 the Clan Douglas Society of North America also recognised the Dickson/Dixon name as a Sept and Allied Family to Clan Douglas. This recognition resulted from the direct connection through Thomas Dickson's mother, Margaret, daughter of William, the 3rd Lord Douglas and also Thomas' faithfulness to the Douglas Clan, notably to his second cousin William, 7th Lord Douglas and William's son the good Sir James, 8th Lord Douglas.