Question: Do director of film Doctors' Wives (1971 film) and director of film Extra Service share the same nationality?
Sentence (from "George Schaefer (director)"): George Louis Schaefer (December 16, 1920 – September 10, 1997) was an American director of television and Broadway theatre, who was active from the 1950s to the 1990s.
Relevant evidence: Yes