- [S408] Walford's County Families of the United Kingdom or Royal Manual of the Titled and Untitled Aristocracy of England, Wales, Scotland, and Ireland, (London: Chatto and Windus, 1899, available in digitised format on Ancestry.com, 2004;), p.1108 (Reliability: 2).
- [S111] Civil Registration Birth Indexes, General Register Office, (1837-;), birth registration of Thomas Spencer M. Wilson, Easthampstead 2c 397, March quarter 1889 (Reliability: 3).
- [S112] Civil Registration Death Indexes 1837-, General Register Office, death registration of Thomas S. Maryon-Wilson, 50, Surrey N.W. 2a 420, December quarter 1938 (Reliability: 3).
- [S205] FreeBMD, (www.freebmd.org.uk;), marriages of Spencer Pocklington M M Wilson/Spencer P M Maryon-Wilson and Minnie Elizabeth Thornhill share reference Windsor 2c 920, December quarter 1887 (Reliability: 3).