- [S324] Lansdell family tree, Judith Lansdell, (March 1999;).
recorded as Les Ayres
- [S112] Civil Registration Death Indexes 1837-, General Register Office, death registration of Norman Rupert C Lansdell, born 18 Jan 1907, Sep 1994, Slough B19C 3211B 260 (Reliability: 3).
- [S205] FreeBMD, (www.freebmd.org.uk;), marriages of Frederick John Lansdell and Alice Chamberlain share reference Lambeth 1d 539, June quarter 1905 (Reliability: 2).
- [S113] Civil Registration Marriage Indexes, General Register Office, (1837-;), marriage of Norman R C Lansdell and Mary J Fenton, Richmond S 2a 1061, March quarter 1934 (Reliability: 2).