What Year?

[Myron]

I recall seeing the 3 King Sisters, Yvonne, Alyce and Marilyn perform live at Tomorrowland Terrace but I am unsure of the date. They were gracious and took photos and autographed my Disneyland Ticket Book. The problem is I don't recall the exact date when they appeared. I think it was in July 1972 but I'm unsure. Can anybody help? Oh yes, it was the first time I saw the wonderful "Main St. Electrical Parade", so it was an unforgettable evening!