John Francis Hackett (December 7, 1911 – May 30, 1990) was an American prelate of the Roman Catholic Church.
[2] On June 29, 1936, Hackett was ordained a priest by Cardinal Jean Verdier at Notre Dame Cathedral in Paris.
[3] Following his return to Connecticut, he was assigned as a curate at St. Aloysius Church in New Canaan, where he remained for nine years.
[4] From 1945 to 1952, he served as secretary to Bishop Henry Joseph O'Brien and assistant chancellor of the Diocese of Hartford.
[3] He selected as his episcopal motto: Manete In Christo (Latin: "Remain in Christ").