Question: Charles Hutchison and William K. Howard were simultaneously active in the film industry between what years?
Related documents: [0]  [DOC] William K. Howard (June 16, 1899 – February 21, 1954) was an American film director, writer, and producer. Considered one of Hollywood's leading directors, he directed over 50 films from 1921 to 1946, including "The Thundering Herd" (1925), "The Power and the Glory" (1933), "Fire Over England" (1937), and "Johnny Come Lately" (1943). [END] 
[1]  [DOC] Charles Hutchison (December 3, 1879 – May 30, 1949) was an American film actor, director and screenwriter. He appeared in 49 films between 1914 and 1944. He also directed 33 films between 1915 and 1938. Though he directed numerous independent silent features, he is best remembered today as Pathé's leading male serial star from 1918 to 1922. In 1923 he went to Britain and made two films "Hutch Stirs 'em Up" and "Hurricane Hutch in Many Adventures" for the Ideal Film Company. He made one last serial in 1926, "Lightning Hutch", for Arrow Film Company. It was meant to be a comeback vehicle, but the production company went into bankruptcy just as it was released. [END] 
Answer: 
1921 to 1946
1921 to 1946