Barbara Gregorich's works include the novel She's on First as well as the nonfiction work, Women at Play: The Story of Women in Baseball, which won the SABR-Macmillan Award for Best Baseball Research of the Year.
Her works for children include Waltur Buys a Pig in a Poke (chosen as a Cooperative Children's Book Center Choice) and Waltur Paints Himself into a Corner. Gregorich studied at Kent State University, the University of Wisconsin, and Harvard. She worked as an English instructor, a typesetter and a letter carrier. She lives in Chicago with her husband, Phil Passen.