- [S100] A Special Corner of England Website, focusing on Castle Camps, Shudy Camps, Bartlow, Horseheath and West Wickham in Cambridgeshire, Marlene Williamson, (http://www.rd29.net/cc/;), marriage of Charles Leonard, lab bac CC son of William shoemaker, and Martha Rogers, sp/ua CC, daughter of Benjamin lab, witnessed by Frederick Leonard & Mary Webb (Reliability: 2).
- [S103] 1861 Census Returns of England and Wales, General Register Office, (7 April 1861;), RG 9., RG 9/1029 f.121 p.12 (Reliability: 3).
Charles Leonard, Head, Mar, 30, Ag Labourer, Camb-shire Castle Camps
Martha Leonard, Wife, Mar, 21, Essex Panfield
- [S56] Castle Camps, Cambridgeshire - Transcript of Parish Register, 1563-1950, (Cambridgeshire Family History Society, CD-ROM, 2004;), burial of Martha Leonard 24, 16 Jul 1863 (Reliability: 3).