[David O. McKay Diary]
As I had no appointment this evening, decided to cut the lawn. Just as I was finishing this job, a tall young man, with lunch box in hand, came up to me. He held out his hand in some sort of a sign and said 'this is the sign of the Priesthood.' Sensing something wrong with him I immediately told him that I had an appointment and would not have time to talk to him. I think he is one of the 'Son's of Aaron' cult. I learned later that he had also called at Pres. Clark's home two or three times, and said that he had been in the Mental Hospital. This young man's name is Clark.
[David O. McKay Diary, as quoted in Minutes of the Apostles of The Church of Jesus Christ of Latter-day Saints, 1910-1951, Privately Published, Salt Lake City, Utah 2010]