- [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
- [S344] Genealogical Memoir of the Family of Montmorency styled de Marisco or Morres, Hervey de Montmorency-Morres, (Paris, 1817 - available on http://books.google.com;), pp. xxix-xxx (Reliability: 2).
- [S205] FreeBMD, (www.freebmd.org.uk;), death registration of Edward D'Alton de Montmorency, Greenwich 5 196, December quarter 1843 (Reliability: 3).