In an interview at the time of its release, Sonny Rollins' last studio album, "Sonny, Please!", the track with the same title was inspired by Sonny listening to Native American music.
It could be a shot in the dark, but have you tried doing a searching on Linkedin or Facebook? I did a search on linkedin and found two people with the Hugh Denton name in Australia.
I just both a used copy of this. 25 UDS for all 10 CDs. I never heard of Squatty Roo Records before. They seem to focus on live recordings. Are they a legit label?