Howdy, partner. It seems that the quality of the images used on this page ain't quite what we expected. You could definitely help out the wiki by uploading some. If you're logged in, it'll get you some achievements going.
He is among the less encountered Criminals in single player, since he does not appear in missions and in gang hideouts, is very rarely encountered in settlements and appears rarely in random encounters.
Grant Avery hanging out at Pacific Union Railroad Camp.