Working at Pinkerton Academy
Frost threw himself into his Pinkerton job with enthusiasm. He taught English, coached the debating team, and even helped with the football team.
(Portrait of the Pinkerton Academy Football Team March 29, 1907)
Anonymous (n.d.). Pinkerton Academy, Derry, N.H.. Derry New Hampshire Public Library Historic Postcards. Retrieved November 10, 2014 from Flickr Commons. Used under a Creative Commons Generic 2.0 license