- [S71] Webpage Ancestry.com (Ancestry.com).
- [S104] Unknown author Pallot's Marriage Index of England 1780 - 1837, n.pub., n.p., unknown edition (unknown publish date) unknown isbn.
- [S110] Atkins, PW manuscript bibliography.
- [S125] Unknown author, 'Western Mail (Perth, WA : 1885-1954), Thursday 20 November 1924, page 35', Western Mail (Perth, WA : 1885-1954), Thursday 20 November 1924, page 35, 20nov1924.
- [S134] Australian Imperial Force - Nominal Roll (1914-18).
- [S137] Unknown author, 'The Sydney Morning Herald', The Sydney Morning Herald, unknown date.
- [S139] Website From Ireland Genealogy & Family History (http://www.from-ireland.net).
- [S140] John Burke A genealogical and heraldic history of the commoners of Great Britiain and Ireland, Volume 4, n.pub., n.p., unknown edition (1838) unknown isbn.
- [S141] Sewell, Barbara: The House of Northbourne Parkers Pioneers of Western Australia 1830 - 1983, Singapore National Printers (Pte) Ltd., ISBN 0 9592493 1 1.
- [S145] Webpage unknown webpage name (http://freepages.genealogy.rootsweb.ancestry.com/~mturner/…).
- [S213] Circular, Institute of Civil Engineers, England, 1 December 1891,Robert Atkins Personal Archives.
- [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.
- [S277] Unknown author, 'The Cornwall Chronicle, Launceston Tasmania', The Cornwall Chronicle, Launceston Tasmania, unknown date.
- [S344] P.H. Atkins No Sequel; The Life and Times of Peter Henry Atkins, privately published by Percival Print & Packaging, Western Australia, 1 (2013) 978-0-646-56925-3.
- [S416] Website FINDMYPAST (http://www.findmypast.com.au).
- [S424] Website Ireland, Civil Registration Indexes, 1845-1958 (https://familysearch.org/search/collection/1408347).
- [S426] Unknown author, '(Perth) Sunday Times', Sunday Times, unknown date.
- [S433] Website Tasmania Passenger List (ancestry.com).
- [S437] Webpage Military Subjects: Organisation, Strategy & Tactics (http://www.napoleon-series.org/military/organization/…).
- [S438] John (ed) Philippart Royal Military Calendar, or Army Service and Commission book (volume 5), Google Books Result, n.p., unknown edition (1820) unknown isbn.
- [S439] Website The Napoleon Series; Peninsula Roll Call (www.napoleon-series.org).
- [S441] Website Ros Davies' Co. Doen Northern Ireland Family History Research Site (http://freepages.genealogy.rootsweb.ancestry.com/~rosdavies/…).
- [S443] Richard Cannon Historical record of the sixty-first, or, the South Gloucestershire Regiment, Parker, Furnivall & Parker, London, unknown edition (1844) unknown isbn.
- [S444] Website Irish Genealogy Explore your family history (http://www.irishgenealogy.ie/).
- [S878] Website Western Australian Genealogical Society Inc. (http://wags.org.au).
- [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).
- [S905] Website BritishBattles.com (http://www.britishbattles.com).
- [S907] Website Irish National Archives - Wills Calendar (http://www.nationalarchives.ie/2013/05/…).
- [S912] E-mail from David Read (Read, David) to Robert Atkins, dated 26 June 2012 ().
- [S915] Various authors, 'The Courier, Hobart', The Courier, Hobart, various dates.
- [S946] Website ulukau Hawaiian Electronic Library (http://ulukau.org/algene/cgi-bin/algene).
- [S954] Greene Family Journal of Mary Anne Greene, Ireland, 1779 - 1814 (Cobbold, Henry, ).
- [S956] Greene Family Journal of Mary Letitia Greene, Ireland, c.1825 to c.1855 (Cobbold, Henry, ).
- [S958] Website Live Auctioneers (https://www.liveauctioneers.com).
- [S960] Greene Family Journal of Mary Letitia Greene, Ireland, c.1825 to c.1855 (Cobbold, Henry, ).
- [S976] Unknown author, 'Inquirer (Perth)', Inquirer, unknown date.
- [S1006] Website The British Newspaper Archive (http://www.britishnewspaperarchive.co.uk/).
- [S1053] Copy of original Deed: sale of land, granted by Kapaakea et al to S H Atkins, Hawaii, 25 January 1858 (Bureau of Conveyances; Hawaii, unknown repository reference) "unknown cd."
- [S1054] Copy of original Deed: sale of land, granted by S H Atkins to John D Paris, Hawaii, 16 April 1863 (Bureau of Conveyances; Hawaii, unknown repository reference) "unknown cd."
- [S1055] Letter from SH Atkins and MA Atkins, Storth, Tasmainia, to J Leake, dated 1851 , University of Tasmania Library.
- [S1057] Letter from S H Atkins, Victoria B.C., to Col. Moody, dated 19/12/1859 , Public Archives British Columbia.
- [S1058] Website Californa Digital Newspaper Collection (https://cdnc.ucr.edu/).
- [S1129] Website Linc Tasmania (https://stors.tas.gov.au/au-7-0050-00215776).
- [S1130] Unknown author, 'unknown article title', Tipperary News, unknown date.
- [S1133] Unknown author, 'unknown article title', Leinster Express (Ireland), unknown date.
- [S1134] Unknown author, 'unknown article title', Dublin Evening Packet and Correspondent (British Newspapers), unknown date.
- [S1135] Unknown author, 'unknown article title', Dublin Morning Register (British Newspapers), unknown date.
- [S1139] Unknown will type of unknown testator of Melbourne, unknown will date, proved in the County Court, 8/9/1870.
- [S1140] Website Public Record Office Victoria (https://prov.vic.gov.au/archive).