Date (happened)
- September 1958 (probable)derived from the event's own title: "Barbers' contest held around September 1958"
- c. May 1968 (probable)The contest occurred about two months before the certain 1968-07-23 lecture.
Told / reported
23 July 1968
Direct chrome dateline 07-23-1968 corroborated by printed media.
About two months before the lecture, a barber and two colleagues attended a local contest and together won four of the five prizes.