I've heard Tex Ritter sing a version of froggy went a corrten', on a collection album on wich he includes various antidotes about the orings of the songs. I think that's were I heard that some one had collected about nine hundred variants. Ofcoarse this could have grown by now. Assuming that actually is were I heard of an existing collection, I might be able to find out who collected it when I find the album wich is fairly well buried at the moment. I think it was some kind of a proffessor so the collection may be in some ones college library.