Rockwell was a vaudeville and radio comic. He was a writer for vaudeville producer J.J. Shubert in the late 1920s and appeared in the 1937 motion picture "The Singing Marine." He also wrote for radio, often in collaboration with comedian Fred Allen.
From the description of Papers, 1913-1954. (University of Wyoming, American Heritage Center). WorldCat record id: 31000175