- [S324] Lansdell family tree, Judith Lansdell, (March 1999;).
recorded as Les Ayres
- [S205] FreeBMD, (www.freebmd.org.uk;), birth of Herbert Frank Lansdell, Fulham 1a 264, June quarter 1904 (Reliability: 3).
- [S112] Civil Registration Death Indexes 1837-, General Register Office, death registration of Herbert Frank Lansdell, Mar 1992, aged 88, born 6 March 1904, Harrow 12 1747 (Reliability: 3).
- [S205] FreeBMD, (www.freebmd.org.uk;), marriages of Edward Frank Lansdell and Kate Annie Brown share reference Chelsea 1a 820, December quarter 1902 (Reliability: 3).
- [S113] Civil Registration Marriage Indexes, General Register Office, (1837-;), marriage of Herbert F Lansdell and Ivy L Clack, Brentford 3a 477, September quarter 1928 (Reliability: 2).