Question: Where was the director of film Thunderhead, Son Of Flicka born?
Sentence (from "Thunderhead, Son of Flicka"): The film was adapted to screen by Dwight Cummins and Dorothy Yost from Mary O'Hara's novel, "Thunderhead" (1943), second in a trilogy with "My Friend Flicka" (1941) and "Green Grass of Wyoming" (1946).
Relevant evidence: No