In 1907, McDevitt was hired as the head coach at Newton High School in Newton, Massachusetts. He coached football at Colby College in Waterville, Maine from 1908 to 1911 and coached the school's baseball team in 1909.COLBY COLLEGE NOTES, Lewiston Saturday Journal, April 14, 1909. In November 1909, he returned to Newton High School to coach the remainder of the football season after head coach Wendell P. Holman resigned.McDEVITT IS CHOSEN. Old Dartmouth Man Will Coach Newton High, Football Team Given a Stiff Day's Work by New Teacher. HARVARD GETS LARGE. Three Other Regulars of the Phillips- Andover Eleven to Go to Yale. CORNELL CHOSEN CAPTAIN. Freeport, Penn, Man Will Lead the Exeter Football Team Next Year. Wendell Acad 5, Arlington H. S. 2d 0 Woburn H. S. 46, Reading H. S. 0., The Boston Daily Globe, November 9, 1909.
