The Reverend Fenhagen served as Rector of several parishes in Maryland, the District of Columbia, and at St. Michael and All Angels’ Episcopal Church in Columbia SC before becoming active in academic settings.
He was Director of the Church and Ministry Program at the Hartford Seminary Foundation.
He was named President and Dean of the General Theological Seminary in New York City in 1978 and retired from there in 1992.
Read it all. You may also find an ENS article there.