- [S2] WA Death Certificate.
- [S14] Website Department of Justice, Victoria, Australia (https://online.justice.vic.gov.au/bdm).
- [S15] Website FamilySearch Ancestral File (www.familysearch.org/eng/search).
- [S20] WA Newspapers LTD, 'Deaths', The West Australian, 21 January 2009.
- [S22] Original marriage certificate of Henry Ramos de Castilla and Williamina Couper, married 23 November 1857 in the Registration District of Hong Kong.
- [S24] Unknown author unknown Family Bible, n.pub., n.p., unknown edition (unknown publish date), Peter Henry Atkins records,.
- [S31] Funeral Notice for Bernard Carey.
- [S34] Letter from Compradore A. Pyne, Feima Steamer, to The Captain of Feima Steamer, dated 23 September 1859 , Robert Atkins Personal Archives.
- [S35] Website Genes Reunited (http://www.genesreunited.com.au/).
- [S36] Webpage India Office Family History Search (http://indiafamily.bl.uk/UI/Home.aspx).
- [S42] Webpage The Cary Family in England (http://www.caryfamily.co.uk/main.html#SulyardeCaryborn1847).
- [S50] Website Ancestor.co.za (www.ancestor.co.za).
- [S53] Webpage Ancestry.com (Ancestry.com).
- [S55] Webpage Ancestry.com (Ancestry.com).
- [S79] Webpage Ancestry.com (Ancestry.com).
- [S80] Webpage Ancestry.com (Ancestry.com).
- [S82] Website India Office Family History Search; British Library (http://indiafamily.bl.uk/UI/Home.aspx).
- [S85] Webpage Ancestry.com (Ancestry.com).
- [S87] Webpage Ancestry.com (Ancestry.com).
- [S90] Letter from Eliza Cary, Mill Brook House, Wellington - Salop, to Williamina de Castilla, dated 1 April 1872 , Robert Atkins Personal Archives.
- [S99] Webpage Ancestry.com (Ancestry.com).
- [S101] Webpage unknown webpage name (unknown url).
- [S102] Unknown author Funeral Invitation for Madame La Douairiere Ramos Di Castilla, Record Type: paper, Location: Ypres, 15 January 1861, n.p., unknown edition (unknown publish date) unknown isbn.
- [S103] Rebecca de Castilla Last will of Rebecca Castilla, Rebecca de Castilla, Belgium, unknown edition (4 Nov1859) unknown isbn.
- [S104] Unknown author Pallot's Marriage Index of England 1780 - 1837, n.pub., n.p., unknown edition (unknown publish date) unknown isbn.
- [S132] Unknown author, 'The Argus, Melbourne', The Argus, Melbourne, unknown date.
- [S149] Website SLWA Post Office Directories (http://www.slwa.wa.gov.au/find/guides/wa_history/…).
- [S159] Webpage Ancestry.com (Ancestry.com).
- [S166] Webpage Ancestry.com (Ancestry.com).
- [S167] Webpage Ancestry.com (Ancestry.com).
- [S176] Webpage Ancestry.com (Ancestry.com).
- [S178] Webpage Ancestry.com (Ancestry.com).
- [S200] Webpage Ancestry.com (Ancestry.com).
- [S201] Webpage Ancestry.com (Ancestry.com).
- [S210] Webpage Ancestry.com (Ancestry.com).
- [S248] Copy death certificate of unnamed de Castilla, died 7 August 1938, registered 20 August 1938 in the Registration District of Northam (Robert Atkins Personal Archives), 137).
- [S253] Copy marriage certificate of HC Castilla and VM Bussell, married 13 June 1894 in the Registration District of Guildford, Western Australia ,Robert Atkins Personal Archives.
- [S348] British Newspapers, 'The Morning Post', The Morning Post, unknown date.
- [S416] Website FINDMYPAST (http://www.findmypast.com.au).
- [S420] Copy death certificate of Maude lilian de Castilla, died 31 March 1953, registered 1 April 1953 in the Registration District of Cape Town (, 1758/53).
- [S426] Unknown author, '(Perth) Sunday Times', Sunday Times, unknown date.
- [S466] Microfilm of the Old Parochial Register of Baptism, St. Augustine, 1790 - 1850 (Norfolk Heritage Centre, various) "unknown cd."
- [S505] Webpage 1911 England Census (Ancestry.com).
- [S886] Copy death certificate of VM de Castilla, died 27 March 1961, registered 12 April 1961 in the Registration District of Perth (Department of Attorney General, Government of Western Australia), 100893C/1961).
- [S890] Copy birth certificate of Violet May Bussell, born 1 September 1869, registered 29 October 1869 in the Registration District of unknown registration district (Department of Attorney General, Government of Western Australia, 11808).
- [S903] Various authors, 'The Albany Advertiser', The Albany Advertiser, various dates.
- [S904] Various authors, 'London Times', London Times, various dates.
- [S1009] Website Family Search (www.familysearch.org).
- [S1076] E-mails from Lori Diss (e-mail address) to Robert Atkins, July 2019 - (Robert Atkins Personal Archives).
- [S1123] E-mail from Peter Walton (unknown author e-mail) to Robert Atkins, dated 29/8/2022 ().