John Bertram Peterson was an American prelate of the Roman Catholic Church.
Peterson, John Bertram was born on July 15, 1871 in Salem, Massachusetts, United States. Son of William Augustine and Margaret (O’Donnell) Peterson.
He attended a commercial college in Boston and then worked at Pope Manufacturing Company. He also served as a newspaper reporter. He then studied at Saint Anselm College in Goffstown, New Hampshire (1893-1895) and St. John's Seminary in Brighton.
He served as Bishop of Manchester from 1932 until his death in 1944. After deciding to join the priesthood, he entered the Marist College in Van Buren, Maine. Peterson was ordained a priest for the Archdiocese of Boston on September 15, 1899.
After two years in study in Paris and Rome, he served as a professor and later rector (1911-1926) at St. John's Seminary. On October 7, 1927, Peterson was appointed Auxiliary Bishop of Boston and Titular Bishop of Hippos by Pope Pius XI. He received his episcopal consecration on the following November 10 from Cardinal William Henry O'Connell, with Bishops George Albert Guertin and John Gregory Murray serving as co-consecrators. During his time as an auxiliary, he was also pastor of St. Catherine of Genoa Church in Somerville.
Peterson was named the fourth Bishop of Manchester on May 13, 1932. He was installed at the Cathedral of St. Joseph on the following July 14. He guided the Catholics of New Hampshire through the Great Depression and World War II. He later died at age 72.