Dale Wollsoncroft demonstrating plow adjustment at a training event in State Center, Iowa, in the spring of 1949. A crowd of men is gathered around an instructor who is kneeling on the ground at the front end of a plow that is in turn connected to a…
Dale Wollsoncroft demonstrating plow adjustment at a training event in State Center, Iowa, in the spring of 1949. A crowd of men is gathered around an instructor who is kneeling on the ground at the front end of a plow that is in turn connected to a…