Priscilla was born at Bath, Somerset, England.  She married Rice Williams in Utah and he re-baptized her on 11 June 1851.  At the time of the 1856 Utah Territorial census and the 1860 federal census of Utah they lived in Sanpete County.  Priscilla joined the Re-organized Church of Jesus Christ of Latter-day Saints in 1863.  By 1880 she and her husband were living in Meigs County, Ohio.