[4] These histories were influential in bringing many readers to regard the Christians of the first centuries as Universalists.

[5] From 1831 to 1836, Whittemore served as Cambridge's representative in the Massachusetts legislature, serving as chair of the committee that oversaw the disestablishment of the Congregational Church and Unitarian Church, to whose special status Whittemore was opposed, from the privileged position they had been accorded in the Massachusetts Constitution.

The results of that referendum brought Massachusetts into accord with the First Amendment to the United States Constitution.

His papers are in the Harvard Divinity School Library at Harvard Divinity School in Cambridge, Massachusetts; the Thomas Whittemore family papers are at Tufts University's Digital Collections and Archives.

"The glory of God, and of His Son Jesus Christ, as manifested in the final holiness and happiness of all men, is the central sun of Universalism."