Millard Fillmore previously served as U.S. Vice-President from 1849-50 under Pres. Taylor.
Millard Fillmore was Unitarian. He joined the Unitarian Church in 1831, nearly two decades before he became President upon the death of Pres. Taylor.
From: Peter Roberts, "Millard Fillmore" page in "God and Country" section of "Science Resources on the Net" website (http://www.geocities.com/peterroberts.geo/Relig-Politics/MFillmore.html; viewed 23 November 2005):
Religious Affiliation: UnitarianSummary of Religious Views:
Fillmore [originally] had no formal religious ties, and indeed had shown relatively little interest in religion, until he joined the Unitarian church in about 1831.Quotations:
"In my opinion, Church and State should be separate, not only in form, but fact -- religion and politics should not be mingled." -- from a series of campaign speeches, Summer of 1856