The Bible verse Mabel tries to recall at the end of the film is John 15:13. "Greater love hath no man than this, that a man lay down his life for his friends."
The "gangland massacre" newspaper headline and story is nearly identical to the St. Valentine's Day Massacre in Chicago in 1929 - seven gangsters lured into a garage and "riddled by machine gun fire".
RKO built a detailed sixteen-room hospital set for this film.
Opening credits music is from King Kong by uncredited Max Steiner.