• William arrived in Utah in 1852 in a company headed by his father John. In 1856 he participated in the rescue of companies stranded on the plains. Using his father's wagon he returned with Marie Jackson Normington from the Martin Company. She later married his father. 

John Parker Company (1852)

• Age at Departure: 16

Rescue Companies (1856)

• Age at Departure: 20

Sources

• Burton, Robert Taylor, Diaries 1856-1907, Record book, circa 1856 October-November.
• "Died, Deseret News, 28 April 1905, 2.
• Douglas, Richard, Notes, 1909-1910.
• England Births and Christenings, 1538-1975
• Utah Death Certificate Index, 1905-1967.