Gardiner Mumford Day
The Conceptions of God in Epictetus and Paul, in Relation to Their Common Environment.
Columbia University M.A. thesis, 1926.
The Story of the Early Days of St. Stephen's Church, Wilkes-Barre.
Wilkes-Barre, Pennsylvania: St. Stephen's Episcopal Church, 1937.
Social Theory in the Protestant Episcopal Church in the United States of America.
Providence: The Little Rhody Press, 1940.
Why Unite with the Presbyterians?
Cambridge, Massachusetts: Episcopal Evangelical Fellowship, 1943.
The Importance of Intinction.
New York: Episcopal Evangelical Fellowship, 1945.
Can We Believe in God? Lenten Sermons.
Cambridge, Massachusetts: Murray Printing Company, 1947.
Old Wine in New Bottles: A Modern Interpretation of the Ten Commandments.
New York: Morehouse-Gorham, 1950.
Biography of a Church: A Brief History of Christ Church, Cambridge, Massachusetts.
Cambridge, Massachusetts: Riverside Press, 1951.
Our Endangered Freedom: A 1953 Patriots' Day Address at Christ Church, Boston (the Old North) on the 178th anniversary of the Displaying of the Lanterns.
Cambridge, Massachusetts: no publisher, 1953.
The Lord's Prayer: An Interpretation.
Greenwich, Connecticut: Seabury Press, 1954.
Christ Speaks from the Cross.
Greenwich, Connecticut: Seabury Press, 1956.
Azariah of Dornakal, 1874-1945.
New York: The National Council of the Protestant Episcopal Church, 1958.
A Silver Lining: 1961, An Ecumenical Year.
Cambridge, Massachusetts: Christ Church, 1961.
The Apostles' Creed: An Interpretation for Today.
New York: Scribner, 1963. [External link]
The General Confession: An Interpretation.
Cincinnati: Forward Movement Publications, 1966.
Open Communion in the Episcopal Church.
Philadelphia: Evangelical Education Society, 1968.