We don't have synonyms for greenbacker yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are greenback, greenbacks and greenbackers.
(n) :
(historical, US) A member of the Greenback Party, who supported greenback or paper money, and opposed the resumption of specie payments (see Specie Payment Resumption Act).
(n) :
Alternative form of Greenbacker. [(historical, US) A member of the Greenback Party, who supported greenback or paper money, and opposed the resumption of specie payments (see Specie Payment Resumption Act).]
(n) :
(historical, US) A member of the Greenback Party, who supported greenback or paper money, and opposed the resumption of specie payments (see Specie Payment Resumption Act).
(n) :
Alternative form of Greenbacker. [(historical, US) A member of the Greenback Party, who supported greenback or paper money, and opposed the resumption of specie payments (see Specie Payment Resumption Act).]