Haven't heard those names in a minute. This anon used to communicate with Ben H. Swett who was the person B&B asked to do the hypnosis on them to recover their memories. He was a really good guy, and actually helped this anon with some issues with my father. I'm sure some of his writings are still out there, worth reading. Here's his description of the first time B&B came to him, and more.
Testimony by Ben H. Swett
Pease AFB, NH 1962-1966 - http://bswett.com/1963-09BettyAndBarney.html