Dear Housefly,
this story was told in the late Craig Hamrick's biography of Mr. Edmonds, BIG LOU. There really weren't many more details beyond what was reported on the IMDB page, however. I think there are other anecdotes regarding Louis' dedication to Nature in ALL its marvelous forms and manifestations... including nudity!
I have the original printing of BIG LOU, but I believe that before he passed away, Craig saw an enlarged edition through the press with more photographs and new material. Maybe another fan here will post the details. The book is well worth reading!
cheers, Gothick