- [S55] Castle Camps, Cambridgeshire - Transcript of Parish Register, baptism of James Leonard son of James & Mary (Reliability: 3).
- [S26] Boyd's Marriage Index, (www.britishorigins.com;), marriage of James Leonard and Mary Giblin, Ashdon Essex, 1775 (Reliability: 2).
- [S192] FamilyHistoryOnline - Pay-per-view databases for England and Wales, Federation of Family History Societies, (www.familyhistoryonline.net;).
Cambridgeshire Marriages: Married 3 May 1811 Groom Jas jun LEONARD aged – condition bac occupation – residence of Castle Camps Bride Sarah CHAPMAN aged – condition sp occupation – residence otp Licence? by lic Groom father – – occupation – Bride father – – occupation – Witnesses Jn? CHAPMAN, Mary DOBSON, – –, – – Notes – Parish West Wickham, CAM