Career
Born in Monterey, California, United States of America, he lived in Mexico from about 1895 to 1909 before moving to Los Angeles to work for Doctorate. West. Griffith on his early films.1
Between the years 1909 and 1912, Wagner worked mostly as a furniture painter, set designer and second unit cameraman. He then turned his attention to gag writing and found a job with Mack Sennett writing gags for Keystone Kops shorts. His specialty was comedy construction, especially the famed car chase scenes.
He often alternated between writing comedy and working behind the camera as a principal photographer or assistant cameraman.
When the United States entered World War I, he joined the Army"s first motion picture unit with the Signal Corps. He was assigned to filming Air Corps footage.
He also filmed battles involving American forces at the Marne, Saint Mihiel and Meuse-Argonne. He was discharged in 1919.
He continued working through the teens and 1920s as a gag writer and cameraman for Fox Films and the Hall Room Boys Photoplays.
He also worked as an assistant director and second unit man for such directors as Allan Dwan and Lewis Milestone. He also was on Corrine Griffith and Constance Talmadge"s writing production staffs. One of his last cinematography assignments before turning to screenwriting full-time was as a second unit cameraman for Rex Ingram"s "The Four Horsemen of the Apocalypse."
In the mid-1920s he wrote gags for Harry Langdon and Will Rogers on the Mack Sennett and Hal Roach comedy lots.
When talkies arrived, Wagner found himself making the difficult transition from silent films to sound.
Yet he found steady work as a gag man, adding bits of dialogue to comedy and dramatic films. He also worked as a director for the Spanish-language division of Fox Films, which included films "Cupido Chauffeur" and "Entre Platos y Notas." In 1934, he helped script The Little Minister with Katharine Hepburn.
He also co-wrote the short film Louisiana Cucaracha (1934), which garnered Radio-Keith-Orpheum Radio Pictures an Academy Award. Even after this success, he struggled with writer"s block.
When he came up with the story idea for A Medal for Benny he again was troubled with putting the story to paper.
He had known John Steinbeck for many years. Steinbeck had considered Jack"s mother, Edith Wagner, as his first writing coach while growing up in Salinas, California. He went on to help Steinbeck with another script on The Pearl.
He closed out his career as a producer of Mexican films featuring such actresses as Dolores del Río, among others
He died in Los Los Angeles