Question: Who is the spouse of the director of film Undertow (1930 Film)?
Sentence (from "Undertow (1930 film)"): Undertow is a 1930 American drama film directed by Harry A. Pollard, written by Edward T. Lowe, Jr. and Winifred Reeve, and starring Mary Nolan, Johnny Mack Brown, Robert Ellis, Churchill Ross and Audrey Ferris.
Relevant evidence: Yes