He was identified as an Episcopalian by A Worthy Company: Brief Lives of the Framers of the United States Constitution by M. E. BradfordMemoirs & Correspondence of Thomas Jefferson, IV, page 512 and the Library of Congress were cited as the sources stating that Morris was a Deist. (Source: Ian Dorion, "Table of the Religious Affiliations of American Founders", 1997).
Gouverneur Morris was the author of large portions of the U.S. Constitution. He led the committee which produced the final draft of this influential document.
From: Robert G. Ferris (editor), Signers of the Constitution: Historic Places Commemorating the Signing of the Constitution, published by the United States Department of the Interior, National Park Service: Washington, D.C. (revised edition 1976), pages 195-197:
The apparent drafter of the Constitution and one of the leaders at the Convention, Gouverneur Morris was one of the wittiest and most brilliant Americans of his time...
Of French and English descent, Gouverneur was born at Morrisania estate, in Westchester (present Bronx) County, N.Y., in 1752... His elder half-brother, Lewis, signed the Declaration of Independence.
Gouverneur was educated by private tutors and at a Huguenot school in New Rochelle.
...Morris died at Morrisania in 1816 at the age of 64 and was buried at St. Anne's Episcopal Churchyard, in the Bronx, New York City.