Priscilla was from Cornwall, England. She crossed the Atlantic on the ship John M. Wood with her parents and siblings and was rebaptized in the Salt Lake City, Utah Seventh Ward on 28 October 1854. At the time of the 1860 federal census she was living as a "domestic" in the household of William and Jane Jennings of Salt Lake City.
His Birth and death dates are confirmed by Eastern Idaho death record.
Her surname is "Jennings" on the 1860 Utah census, death certificate and Find A Grave website.