William was born at Forfar, Scotland on November 4, 1842. After his arrival in Australia he met and married Mary Ann Lithgow in September 1875. Mary Ann was born at Coleraine Country Derry Ireland on June 30, 1850. Initially, they lived at Steels Flat, probably running the property owned by his brother David Mitchell. Later the family moved to Jancourt, south of Cobden in the Western District. This property was also owned by David Mitchell but when the property was subdivided, William purchased the homestead and several hundred acres of the estate.
William died on November 3, 1906 aged 64 years at Jancourt and Mary Ann in December 1923. Both are interred in the Camperdown Cemetery.
 Chronical Despatch, Wangaratta, February 5, 1952.
 Marriage Registration No. 8038.
 Birth, Death and Marriage Reg No. 7363.
 Charles Towt’s death Reg No 2607.
 Births, Deaths and Marriages Reg No 9985.
 The Age death notices September 11, 1972.