(Jon of the Clue Crew regards a painting.)  I'd say the work here is derivative of this man, who died in France in 1973
Conservationist and historian T. H. Watkins, from Montana State .... 
conflicting notions of who the Sheepeaters were adds to the mystery and is a clue 
that ...... John W. Barlow's reconnaissance of Yellowstone, but his negatives were 
...... French historian of religions observed that for religious man, nature is never 
only.