Question: when the cast member who co-wrote Episode 20 of the first season of M*A*S*H born ?
Sentence (from "McLean Stevenson"): Edgar McLean Stevenson Jr. (November 14, 1927 – February 15, 1996) was an American actor most recognized for his role as Lt. Colonel Henry Blake on the TV series "M*A*S*H".
Relevant evidence: Yes