types:
Boswell
a devoted admirer and recorder of another's words and deeds
Confederate
a supporter of the Confederate States of America
free trader
an advocate of unrestricted international trade
Jacobite
a supporter of James II after he was overthrown or a supporter of the Stuarts
loyalist,
stalwart
a person who is loyal to their allegiance (especially in times of revolt)
New Dealer
a supporter of the economic policies in the United States known as the New Deal
Roundhead
a supporter of parliament and Oliver Cromwell during the English Civil War
seconder
someone who endorses a motion or petition as a necessary preliminary to a discussion or vote
Shavian
an admirer of G. B. Shaw or his works
toaster,
wassailer
someone who proposes a toast; someone who drinks to the health of success of someone or some venture
verifier,
voucher
someone who vouches for another or for the correctness of a statement
Whig
a supporter of the American Revolution
apostle
an ardent early supporter of a cause or reform
backslapper
someone who demonstrates enthusiastic or excessive cordiality
bleeding heart
someone who is excessively sympathetic toward those who claim to be exploited or underprivileged
fanatic,
fiend
a person motivated by irrational enthusiasm (as for a cause)
gadgeteer
a person who delights in designing or building or using gadgets