As an independent, Catholic, co-educational, college preparatory high school situated in Nashua, New Hampshire, Bishop Guertin High School seeks to serve the young people entrusted to its care. Inspired by and building upon the educational tradition of the Brothers of the Sacred Heart, Bishop Guertin develops learners to their greatest potential, especially in their contribution toward the world around them and in their faith in a loving God. established in 1963 and named in honor of Bishop Georges-Albert Guertin, third bishop of Manchester, learners come from more than 41 cities and towns in New Hampshire and Massachusetts. BG’s nearly 9,000 graduates can be found in New England, throughout the United States, and across the globe.