The faces with wide open eyes, and horses are by Crandall, and he is credited on pencils and ink on covers for Quality Comics by Jerry Bails' Who's Who.
Faces with heavy jaws in sideview, and also the eyes and smile are all signs of Gustavson. He is credited on this feature by Jerry Bails' Who's Who.
All Gustavson credits verified and courtesy of Terry Gustafson, son of Paul Gustavson.
Pencils: Ger Apeldoorn suggests Morisi.
Morisi is credited on pencils and ink on this feature by Jerry Bails' Who's Who, and the round eyes in round faces, and sneering mouth in sideview are similar to his signed stories in Danger # 2 (Comic Media).
Writer credit by Martin O'Hearn.
Sultan is credited on pencils on this feature by Jerry Bails' Who's Who, and some faces with pouchy lines under the eyes in side view point to him.
The layout with many heads halfway inside the panel borders, and shouting faces are very similar to many of his credited stories, like in T-Man Comics and Nyoka.
His peculiar lines outside corners of eyes are missing, but he is only credited on pencils on this feature (Frontier Marshal) by Jerry Bails' Who's Who.