Leah Priscilla Price
She traveled with her uncle John R. Davies' family and is listed in the British Mission record as Leah Price Davies. They arrived in New York on 21 May 1861 via the ship Underwriter. Birth date confirmed by Millcreek Ward record at the time of a rebaptism on 30 March 1862, which was prior to that year's emigration season so the family must have crossed the plains in 1861. Further research is needed to identify the company with which they traveled.
Her obituary confirms she traveled with her uncle, though the year of travel is inaccurate.