Northfield Mount Hermon Address 1 Lamplighter Way Northfield , Massachusetts 01354 United States Coordinates 42°40′02″N 72°29′03″W﻿ / ﻿42.667259°N 72.484145°W﻿ / 42.667259; -72.484145Coordinates: 42°40′02″N 72°29′03″W﻿ / ﻿42.667259°N 72.484145°W﻿ / 42.667259; -72.484145 Information School type Private, boarding Motto Discere et Vivere (To Learn and to Live) Established 1879 (1879) Founder Dwight L. Moody Head of school Charlie Tierney (interim, until the end of the 2018/19 school year) Faculty 92 (on an FTE basis) Enrollment 655 total 83% boarding 17% day Average class size 11 Student to teacher ratio 6:1 Campus size 215 acres (core campus), 1,353 acres (total land holdings) Campus type Rural Color(s) Maroon and light blue Song Jerusalem Athletics 20 interscholastic sports; 67 teams Mascot the Hogger Team name Hoggers Endowment $136 million Website www.nmhschool.org