- [S195] International Genealogical Index, The Church of Jesus Christ of Latter-Day Saints, (www.familysearch.org;), baptism of Gilbee Cullen, son of Jas Cullen and Sus, 26 Jan 1791, Folkestone, Kent (extracted from registers) (Reliability: 2).
- [S318] Churchyard Monumental Inscriptions - Rolvenden, Kent, Leland L Duncan, (Kent Archaeological Society (http://www.kentarchaeology.org.uk/Research/Libr/MIs/MIsRolvenden/01.htm);).
146. (Altar Tomb). Top blank. South side: Erected to the memory of Thomas RICHARDSON of this parish yeoman died 21 January 1832 aged 77. Left surviving Ann his wife. West end: Anna wife of Thomas Richardson, born 1764 died 2 May 1856. North side: Gilbert CULLEN, Gentleman late of this parish born January 1791 died November 1866. East end: Jane wife of Gilbert Cullen died 29 December 1869 aged 81