George Edward Cokayne, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant (London: St. Catherine Press, 1910.), 6:181a, Los Angeles Public Library, 929.721 C682.
George Ormerod, The History of the County Palatine and City of Chester (London: Lackington, Hughes, Mavor & Jones, 1819.), 2:599, Family History Library, 942.71 H2or.
Joseph Edmondson, An Historical and Genealogical Account of the Noble Family of Greville (London: J. Edmonson, 1766.), pp. 4–5, Family History Library, 929.242 G869e.
Collectanea Topographica et Genealogica (London: J.B. Nichols, 1834–1843. FHL BRITISH Film #496,953 Item 3.), 6:74, Family History Library
Egerton Brydges, Collins's Peerage of England (London: T. Bensley, 1812.), 4:332-3, Family History Library, 942 D22be.