I was alerted to another problem with the bogus May 4, 1972 Jerry Killian memo, by a former pilot with the 111th FIS in Houston: May 14, 1972 was Mother's Day, and the group never drilled on Mother's Day week-end.
Here' how I confirmed the date
Sunday, May 14th IN THE NEWS:
In front a Mother's Day crowd of 35,000, Willie Mays, makes a triumphant return to New York with the Mets, hitting a game-winning home run against his old teammates. He scores in the 1st on Rusty Staub's grand slam and his solo in the 5th snaps a 4–4 tie. The final score is 5–4.