 From 1955 to 1982 he was a member of the board of trustees for the Albany Savings Bank.He was the bank's president from 1967 to 1971 and chairman of the board and chief executive officer from 1971 to 1975.Pfeiffer maintained an interest in Republican politics, and successfully managed the campaigns of Nelson Rockefeller for Governor of New York in 1962 and 1966.