Creighton served in a number of episcopal positions. He raised to the episcopate when he was elected Missionary Bishop of Mexico in 1925.[3] He was consecrated bishop on January 12, 1926, at 10:30 A.M. Place,in St Ann's Church, Brooklyn, by Presiding Bishop John Gardner Murray. He served as executive secretary of the Department of Domestic Missions of the Episcopal Church between 1930 and 1933. He remained in Mexico until his election as Suffragan Bishop of Long Island and Archdeacon of Queens and Nassau on February 14, 1933.[4] On January 27, 1937, Creighton was elected Coadjutor Bishop of Michigan, and was installed as coadjutor on May 2, 1937. He succeeded as diocesan bishop in 1940. In 1947, he was involved in controversy over the remarriage of divorced persons.[5] He died in office on December 23, 1948.
^Michigan Historical Records Survey (1940). Inventory of the Church Archives of Michigan: Protestant Episcopal Church, Diocese of Northern Michigan, p. 14. Michigan Historical records survey project, Ann Arbor, MI.