Les Wallach worked for the Park Service.
From my limited experience with more recent Park Service employees, I doubt we'll see too many become hunting/gun writers...
I worked summers (1960-64) in Montana (Glacier National Park trail crew) and Idaho (smokejumper) and many of the folks I worked with had off-season outdoor jobs involving making nature films for Disney, hunting cougar for bounty, etc. - OK, a lot were school teachers or university professors). They had a wealth of outdoor and hunting experiences that would translate easily to writing.
You are right though, not many of today's Park or Forest Service personnel (even seasonal ones) would grow up to be hunting or gun writers.
