Bobby did not write "Sepik Pilot" - that book was written by Jim Sinclair.
Bobby's only book to my knowledge was his memoires, "You live but once" which was a private and limited printing. I have a signed copy.
For those that knew Bobby, his widow Jeannie passed away at mid night last Saturday night, aged 98 years. They leave two daughters, Julie and Robin.
Whilst not directly aviation related but containing some great PNG yarns, I recently acquired a copy of Keith Buxton's "The Golden Years" which his daughter is selling at $12 per copy, half price. (Keith "Jungle Jim" Buxton was a PNG Liklik Dokta in the 1950s and 1960s, later a PNG inbound tour guide who passed away over a decade ago.) Anyone wanting a copy of Keith's book could PM me for the contact details of his daughter.