- [S33] Burke's Peerage and Gentry Website, (http://www.burkes-landed-gentry.com;), 107th edition, De Montmorency lineage (Reliability: 2).
- [S101] 1841 Census Returns of England and Wales, Home Office, (6 June 1841;), HO 107/489/17 f.4 p.3 (Reliability: 3).
Edward de Montmorency, 55, Lieutenant RN, N
Jas de Montmorency, 20, N
Mary de Montmorency, 50, Y
- [S205] FreeBMD, (www.freebmd.org.uk;), death registration of James L de Montmorency, 65, Greenwich 1d 590, December quarter 1886 (Reliability: 3).
- [S337] Index to Marriage Licence Allegations, Faculty Office 1701-1850, (www.britishorigins.com;), marriage licence for James Lodge de Montmorency & Susan Kiddell, 4 Oct 1849 (Reliability: 3).
- [S205] FreeBMD, (www.freebmd.org.uk;), marriages of James Lodge de Montmorency and Susan Kiddell share reference Lewisham 5 406, December quarter 1849 (Reliability: 3).