The First Congregational Church of Antwerp was organized in July, 1819, by Rev. Isaac Clinton, then principal of the academy at Lowville. The event took place in Copeland Hall, upon the site of the present Proctor House. The original members were William Randall, Percival Hawley, Edward Foster, Elijah Hoyt, Hosea Hough, Mrs. Hawley, Mrs. Foster, Mrs. Frances Eaton, and Mrs. Polly Copeland. It was agreed beforehand to employ either a Presbyterian or a Congregational minister, as might be most convenient, and to allow him to choose the polity of the organization.
The Church History of Alexandria New York, provides a brief history of each of the churches in existence in Alexandria in 1878, including their members and leaders.