- [S113] Civil Registration Marriage Indexes, General Register Office, (1837-;), marriage of Hugh W. Gough and Margaretta E. Maryon-Wilson, Westminster 1a 1187, December quarter 1935 (Reliability: 3).
- [S112] Civil Registration Death Indexes 1837-, General Register Office, death registration of Margaretta Elizabeth Gough (Lady), 14 MR 1902, Bath 22 0248, March quarter 1977 (Reliability: 3).
- [S111] Civil Registration Birth Indexes, General Register Office, (1837-;), birth registration of Margaretta E. Maryon-Wilson, Woolwich 1d 1229, June quarter 1902 (Reliability: 3).
- [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).
- [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).