John Agar was born in Chicago, the eldest of four children. In World War II, Sgt. John Agar was a United States Army Air Force physical instructor. His 1945 marriage at the Wilshire Memorial Church to "America's Sweetheart" Shirley Temple put him in the public eye for the first time, and a movie contract with independent producer David O. Selznick quickly ensued.
Agar debuted opposite John Wayne, Henry Fonda and Temple in John Ford's Le massacre de Fort Apache (1948), initial film in the famed director's "Cavalry Trilogy".
His marriage to Shirley Temple ended in 1949, while his movie career continued.
Popular with fans of Westerns and sci-fi flicks, Agar was a staple at film conventions and autograph shows.
