"Ann Brewster" was the pen-name of Shirley Sonya Zweifach, who was born in New York City on November 20, 1918. In June of 1937 Shirley Sonya Zweifach graduated from Mount Vernon High School, where she was awarded a scholarship to attend Cooper Union Art School in NYC. In June of 1941 Shirley Sonya Zweifach graduated from Cooper Union. In 1942 "Ann Brewster" was twenty-six years old, when she was hired to work in the Binder Comic Shop. The studio was operated by Jack Binder. He supplied comics to publishers, such as Fawcett, Marvel, and Street & Smith. In 1944 "Ann Brewster" joined the Iger Studio, located at 1619 Broadway, between 49th Street and 50th Street. The Iger Studio supplied material for such publishers as Quality Comics, Holyoke, and Gilberton's Classics Illustrated. In 1948 "Ann Brewster" worked for Ace Publications, where she did romance art. Shirley Sonya Zweifach died at the age of eighty-six on July 9, 2005 in NYC.