Renowned researcher and author, Mr. Huntoon holds SPMC member #662. He was awarded an honorary life membership in 2016. He specializes in researching federal records pertaining to currency issues at the U. S. National Archives and Bureau of Engraving and Printing certified proofs of U. S. currency that are housed in the National Numismatic Collections in the Smithsonian Institution. A prolific author for many numismatic publications, he is a regular contributor to Paper Money.

Mr. Hickman was SPMC member #1590. He was the recipient of the Nathan Gold Memorial Award in 1983 and 1995. He was named a Numismatic Ambassador in 1983. He co-wrote the Standard Catalog of National Banknotes that was published in 1982. Was a partner with Dean Oakes in Hickman & Oakes auctions, presenting 44 auctions. He served as curator of the Higgins Museum for a time.

Mr. Goldstein was SPMC member #133. He served as governor from 1964-1973. He was a member of the member recruitment committee 1969-1970. He received an SPMC president's Award of Merit in 1967 and 1973 and the recuritment award in 1965, 1966 and 1970. The SPMC named their recruitment award the Nathan Goldstein award in honor of his efforts.

Mr. Friedberg has been called the "man who brought coin collecting to your local department store." Author of Paper Money of the United States which debuted in 1953 which is still published today with sons Arthur and Ira as co-editors. He was one of the founders of the Capital Coin Company and the Coin & Currency Institute. When he suffered an untimely death at the age of 50 in 1963, the Professional Numismatists Guild named its literary award in his honor.

Mr. Carter, one of the "twin smokestacks" along with Tom Bain held SPMC membership #320. He served as a governor from 1962-1963. His collection of world paper money was purportedly the most complete ever.