Before becoming Presiding Bishop, Bishop Griswold was Bishop of Chicago (1987-1997) and Bishop Coadjutor (1985-1987). He was ordained in 1963 and served three parishes in the Diocese of Pennsylvania before being elected bishop.

Bishop Griswold has served as co-chair of the Anglican-Roman Catholic International Commission and on diocesan, national and international committees for liturgy, worship and ecumenism. He was on the standing committee for the Lambeth Conference and was elected to the Primates Standing Committee in May, 2003.

Frank Griswold has presented at and led conferences and retreats nationally and internationally throughout his ministry, spanning a variety of topics including ecumenism, evangelism, spirituality and theology. His articles, essays and sermons have been published in periodicals and theological journals including Anglican Theological Review, Episcopal Life (monthly column), Cross Currents, Anglican Advance and many others. His daily meditations from the General Convention of 2000 produced a Cowley Publications Cloister Book entitled Going Home.

The Presiding Bishop was educated at St. Paul's School in Concord, N.H. and earned an A.B. in English literature at Harvard College (1959). He attended the General Theological Seminary and earned his B.A. and M.A. in theology at Oriel College, Oxford University (1962, 1966). He has received honorary degrees from the General Theological Seminary, Seabury-Western Theological Seminary, Nashotah House, Sewanee, Berkeley Divinity School, Virginia Theological Seminary and Episcopal Divinity School.

Bishop Griswold and his wife, Phoebe Wetzel Griswold, have two adult daughters.