Aqueduct Commission, New York, Aqueduct Commission, Benjamin S. Church, John C. Sheehan, and James C. Spencer. Report to the Aqueduct Commissioners, by the President, James C. Spencer, containing reports of the Secretary, John C. Sheehan, and of the Chief Engineer, Benjamin S. Church, giving a review of the work of the Aqueduct Commission to January first, A.D. 18. New York: D. Taylor, 1887.