- [S272] Information from Marlene Williamson, descendancy report for Susanna Halls, dated 9 May 2005 (Reliability: 2).
- [S105] 1881 Census Returns of England and Wales, General Register Office, (3 April 1881;), RG 11., RG 11/1672 f.108 pp.7-8 (Reliability: 3).
Coles Hill, Castle Camps
William Free, Head, Mar, 32, Ag Lab, Cambs Castle Camps
Ann Free, Wife, Mar, 31, Cambs Shudy Camps
Emily Free, Daur, 11, Scholar, Cambs Castle Camps
Julia Free, Daur, 8, Scholar, Cambs Castle Camps
Arthur William Free, Son, 6, Cambs, Castle Camps
Fred Free, Son, 2, Cambs, Castle Camps
- [S56] Castle Camps, Cambridgeshire - Transcript of Parish Register, 1563-1950, (Cambridgeshire Family History Society, CD-ROM, 2004;), marriage of William Free (x) of full age bac lab of Castle Camps son of Joseph lab; & Ann Halls, under age sp of Castle Camps dau of Robert lab, witnessed by Isaac Free (x), Fanny Halls (x), 13 Sep 1870 (Reliability: 3).