UELAC is only one organization that was founded to document loyalist history. Their definition of a loyalist is a bit arbitrary and defined by there own rules a couple of hundred years after the event.. If he was jailed for his political views, left the USA in a short time frame during or after the American revolution because he supported the English Crown, he was a loyalist. You will, however, find that, the primary motivation for many was not political but was the 700 acre free land grants offered by King George.