The story that Pierce and McIntyre relate to Sgt. Condon about Charles R. Drew (the black doctor who developed the process for preserving blood plasma) dying for lack of a blood transfusion because the hospital refused admit him since he was black is untrue. Although the story is told in several books, Dr. John Ford, one of the passengers in Dr. Drew's car, said that the injuries to Dr. Drew were such that a blood transfusion would have killed him faster. According to Dr Ford "We all received the very best of care. The doctors started treating us immediately. I can truthfully say that no efforts were spared in the treatment of Dr. Drew, and, contrary to popular myth, the fact that he was a Negro did not in any way limit the care that was given to him."
Only time we ever see Henry's wife, although only in a film. In previous seasons, her name was Mildred, but from this point on, her name is Lorraine.
During Margaret and Frank's fight, Margaret claims that despite having a brain, Frank only thinks of her as "a bag of desirable bones" - was a scene reshot and reused from "Dear Dad, Again" (1972). In that episode, after having the exact same fight, word-for-word (although only snippets were seen under Hawkeye's narration), Frank gets drunk in The Swamp, disturbing the whole camp. In this one, they argue, also each other, and then are overcome with passion.
Sgt. Condon's overtly racist request to get the "right color blood" was not uncommon during the Korean War. After 1947, according to a Red Cross policy published in Look (March 28, 1961 p. 86), hospitals were allowed to "collect and hold blood in such a manner as to give the physician and the patient the right of selection at the time of administration." This practice of blood segregation continued until the late 1960s.
Radar mentions that at the last monthly meeting, a motion had been made to hold a yearly reunion. This same concept would spark the entire plot for the later episode The Party (1979).