found: The rocky road, 1910:(Frank Powell; cast; name not given)
found: Niver, K. Early motion pictures, 1985:p. 277 (Frank Powell; actor in The rocky road)
found: AFI catalog, feature films, 1911-1920, indexes, c1988:p. 171 (Frank Powell, same as Frank E. Powell)
found: Wikipedia WWW site, viewed May 14, 2012:(Frank E. Powell; stage and screen actor, writer and director; born in Hamilton, Ontario, Canada; began his career in film in 1909 as an actor and scriptwriter at Biograph Studios; co-directed his first film with D.W. Griffith; best remembered for discovering Theda Bara; started his own company, Frank Powell Productions in 1916; directed his last film for Mack Sennett Comedies in 1921)
found: Internet movie database WWW site, viewed May 14, 2012(Frank Powell; Frank E. Powell; director, actor, writer, producer; founded Sunset Pictures Corp., in San Antonio, Texas, in 1919; also known as Frank Fowell)
found: The Film index, a bibliography,v. 1, film as art, 1941 p. 517 (Frank L. Powell; film director)
found: Moving picture world, v. 26, no. 9, 11-20-1915:p. 1473 (Frank W. Powell; film director; discovered Theda Bara)
found: World War I draft registration cards, 1917-1918, viewed online at Ancestry.com May 22, 2012:record for Frank Powell (b. May 8, 1877; film director, Sunset Pictures, Inc.)