Ellen Gould White
Maiden name: Harmon. B: November 26, 1827, D: July 16, 1915. Attended meetings of Baptist preacher Rev. William Miller who predicted that Jesus Christ would return in 1844. Ellen was later recognized as a "prophetess" by the Seventh-day Adventist Church, one of the several churches that was formed out of the Millerite Movement (Advent Movement).
When Catholics got wind of Adventists saying that "the Beast of the Sea" was the Catholic Church, and the "little horn" a future pope (VICARIVS FILII DEI = 666 in Latin) someone pointed out that ELLEN GOULD WHITE also = 666 in Latin (U comes from V, and if W is 2 U's or 2 V's).