Aaron Abraham Weinstein was born in New York City to Russian immigrant parents. He began using the name Aaron A. Wyn when he entered City College of New York in 1916. In 1919 he completed college and began work in the printing industry as a proof reader. In 1926 he married Rose Schiffman, who was also a Russian Jew. She was working as a bookkeeper at her family's printing business. By 1930 Wyn was an associate editor at Magazine Publishers, Inc, which was owned by Warren A. Angel. Wyn worked under editor Harold Hersey on such pulp magazines as Sky Birds and Spy Stories. In 1931 he was an editor, and by 1932 he had become the publisher of Magazine Publishers, which became Ace Publications in 1938. In 1940 the publisher produced comics as Ace Comics, Inc. The most popular titles were Super-Mystery Comics, Four Favorites, Crime Must Pay the Penalty, and Baffling Mysteries. Artists who contributed to these publications include Jim Mooney, Leo Morey, Jack Alderman, George H. Wilson, Warren Kremer, and Fred Guardineer. His wife, Rose Wyn, became an active contributor in the publishing business as editor of various romance magazines as well as comic books, such as Glamorous Romances, Love At First Sight, and Ten-Story Love. Artists who contributed to these publications include Alexander Redmond, Sam Cooper, and Ed Moline. By 1952 Ace had moved into paperback publishing. They ceased publishing pulps by 1953 and ceased their comic book publishing by 1956. Aaron Wyn died at home at the age of 69.