- [S8] Website Aust War Memorial - Prisoner of War records (http://www.awm.gov.au/people/roll-search/prisoners_of_war/).
- [S25] Unknown author Castilla Family Bible, n.pub., n.p., unknown edition (unknown publish date), Michael Letch's records,.
- [S37] Webpage unknown webpage name (www.ancestry.com).
- [S43] Letter from HR Castilla, Hong Kong, to HC Castilla, dated 17 aug 1867 , Personal research papers of Philip William Atkins.
- [S44] Letter from Emma Castilla, Ypres, Belgium, to HR de Castilla, dated 1861 , Personal research papers of Philip William Atkins.
- [S46] Original marriage certificate of Margaret de Castilla and Henry Doyle Moseley, married 24 Jan 1929 in the Registration District of Perth ,Personal research papers of Philip William Atkins.
- [S52] Webpage Ancestry.com (Ancestry.com).
- [S68] Webpage Ancestry.com (Ancestry.com).
- [S71] Webpage Ancestry.com (Ancestry.com).
- [S84] Webpage Ancestry.com (Ancestry.com).
- [S115] Website Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/).
- [S120] Jardine Matheson Papers: Letters by H. Castilla, 1854 - 1867, published on CD-Rom by Janus University of Cambridge Library (West Road Cambridge Cambs CB3 9DR, England) 4 April 2011.
- [S121] Website The Times Online Archives (http://archive.timesonline.co.uk).
- [S137] Unknown author, 'The Sydney Morning Herald', The Sydney Morning Herald, unknown date.
- [S177] Webpage Ancestry.com (Ancestry.com).
- [S182] Webpage Ancestry.com (Ancestry.com).
- [S207] Webpage Ancestry.com (Ancestry.com or http://www.records.nsw.gov.au/state-archives/…).
- [S230] Probate of Henry M Castilla of Aberdeen, Scotland, unknown will date, proved in the Commissary Court Books of Aberdeenshire, 24 April 1868, Robert Atkins Personal Archives.
- [S251] Webpage Former Wills Flour Mill (http://vhd.heritage.vic.gov.au/places/result_detail/2821).
- [S258] E-mail from Kristel De Wulf (e-mail address) to Janet Atkins, dated 22 August 2011 ().
- [S260] Issue 18220, 'Marriage Antonina Castilla', The Morning Post (London, England), 6 May 1829.
- [S275] E-mail from Kristel De Wulf (e-mail address) to Robert Atkins, dated 17 September 2011 ().
- [S285] Website Norfolk Family History Society (norfolkfhs.org.uk).
- [S289] Unknown author, 'Glasgow Herald', Glasgow Herald, unknown date.
- [S293] Website Wikipedia, Jardine Matheson Holdings (http://en.wikipedia.org/wiki/Jardine_Matheson_Holdings).
- [S294] Website Index of letters to Jardine Matheson and Co concerning shipping (http://janus.lib.cam.ac.uk/db/node.xsp).
- [S345] British, 'The Morning Chronicle', The Morning Chronicle, unknown date.
- [S346] Unknown author, 'Singapore Morning Post', Singapore Morning Post, unknown date.
- [S347] British Newspapers, 'London Standard', London Standard, unknown date.
- [S414] British Newspaper Archives, 'Norfolk Chronicle', Norfolk Chronicle, unknown date.
- [S444] Website Irish Genealogy Explore your family history (http://www.irishgenealogy.ie/).
- [S453] Patricia Lim Forgotten Souls, A Social History of the Hong Kong Cemetery, Hong Kong University Press, 7 Tin Wan Praya Road, Aberdeen, Hong Kong, first (2011) 978-962-209-990-6.
- [S457] E. K. Haviland The American Neptune, A Quarterly Journal of Maritime History and Arts, Early Steam Navigation in China, Hong Kong and the Canton River, Peabody Essex Museum, Salem, Massachusetts, USA, unknown edition (1941 onwards),.
- [S461] Various authors, 'The Daily News, Perth', The Daily News, Perth, various dates.
- [S514] Webpage Victoria Cross Medals, 1857-2007 (Ancestry.com).
- [S521] Webpage New South Wales, Australia, Returns of the Colony, 1822-1857 (Ancestry.com).
- [S877] Copy death certificate of Williamina de Castilla, died 15 March 1893, registered 16 March 1893 in the Registration District of Perth (Robert Atkins Personal Archives), 192/93).
- [S879] J. Penry Lewis Tombstones and Monuments in Ceylon, Government Printer, Ceylon, unknown edition (1913) unknown isbn.
- [S894] Death record, Quebec Vital and Church Records (Drouin Collection 1621 - 1967).
- [S896] Privy Council for Trade, e-copy, 18 June 1861, England ,National Maritime Museum.
- [S931] Various authors, 'The Ballarat Star', The Ballarat Star, various dates.
- [S932] Webpage Australian Shipping 1788 - 1968 (unknown url).
- [S970] 'Southern Times (Bunbury)', Southern Times.
- [S976] Unknown author, 'Inquirer (Perth)', Inquirer, unknown date.
- [S1006] Website The British Newspaper Archive (http://www.britishnewspaperarchive.co.uk/).
- [S1018] Website 2/4th Machine Gun Battalion (http://www.2nd4thmgb.com.au/).
- [S1034] Truth (Perth WA), 'Truth (Perth WA)', Truth (Perth WA), 1903 - 1931.
- [S1080] Unknown will type of Williamina de Castilla of Perth, Western Australia, 19 May 1892, proved in the Supreme Court, 29 March 1893, State Records Office.
- [S1085] Unknown author, 'unknown article title', London and China Telegraph, unknown date.
- [S1086] North China Herald, 'Shipping Intelligence', North China Herald (1850 - 1867), 1862 - 1865.