William Channing Gannett served as minister from 1889 to 1908. He came from a prominent Unitarian family, his father, Ezra Stiles Gannett, having written the constitution for the American Unitarian Association and served as its first secretary. William Channing Gannett himself had gained prominence as a leader of the successful movement within the denomination to end the practice of binding it by a formal creed, thereby opening its membership to non-Christians and even to non-theists. While pastor of a Unitarian church in Wisconsin before coming to Rochester, he had served as vice president of that state's women's suffrage association.