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. Whittmore held that "no civil government has a right to compel the citizens to support any system of religion whatsoever" and supported calls for a popular referendum on the
separation of church and state in 1834. The results of that referendum brought Massachusetts into accord with the
First Amendment to the United States Constitution. He was buried in
Mount Auburn Cemetery. 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. == Ideas ==