- [S1] WA Death Certificate.
- [S2] WA Death Certificate.
- [S3] Private papers of P.W. Atkins, unknown period, Personal research papers of Philip William Atkins.
- [S4] David Black & Geoffrey Bolton Biographical Register, Members of the Western Australian Parliament, Western Australian Parliamentary History Project, Perth Western Australia, unknown edition (1990),.
- [S9] Australian Imperial Force - Nominal Roll (1914-18).
- [S13] Website WA Cemeteries Board (www.mcb.wa.gov.au).
- [S19] Website Department of Justice BDM Family history online indexes (www.justice.wa.gov.au/_apps/poineerindex).
- [S62] Webpage Ancestry.com (Ancestry.com).
- [S79] Webpage Ancestry.com (Ancestry.com).
- [S126] Unknown author, 'Moseley - De Castilla Wedding', West Australian Newspaper, 25 jan 1929.
- [S127] Unknown author, 'West Australian Newspaper', West Australian Newspaper, unknown date.
- [S130] Unknown author, 'Launceston Examiner', Launceston Examiner, unknown date.
- [S132] Unknown author, 'The Argus, Melbourne', The Argus, Melbourne, unknown date.
- [S133] Unknown author, 'The Mercury (Hobart)', The Mercury (Hobart), unknown date.
- [S143] Website Irish Newspaper Archives (http://www.irishnewsarchive.com).
- [S144] E-mail from Marolyn Hamilton (Marolyn Hamilton [e-mail address]) to Michelle Harrington, dated 29 October 2009 ().
- [S146] Webpage Birdhill (http://www.birdhilltidytowns.ie/the_twiss_family.html).
- [S148] Unknown will type of unknown testator of Victoria, 17 May 1919, proved in the Supreme Court, 9 January 1930, Robert Atkins Personal Archives.
- [S149] Website SLWA Post Office Directories (http://www.slwa.wa.gov.au/find/guides/wa_history/…).
- [S150] V.G.Fall The Mills of Jarrahdale A Century of Achievement 1872 - 1972, Lamb Paterson PTY. LTD., Osbourne Park WA, unknown edition (unknown publish date) unknown isbn.
- [S156] E-mail from Michelle (e-mail address) to Robert Atkins, dated 9 Feb 2011 ().
- [S157] Information supplied by Robert Philip Atkins (21 Hartung Street, Mundaring Western Australia 6073) to unknown recipient (unknown recipient address), unknown date.
- [S175] Website ancestry.com.au (www.ancestry.com.au).
- [S177] Webpage Ancestry.com (Ancestry.com).
- [S192] Private papers of Philip William Atkins, unknown period.
- [S228] Website WEBSITE*TROVE Newspaper Archives (http://trove.nla.gov.au/ndp/del/home).
- [S427] Various, Historical records, unknown date, Perth Western Australia.
- [S430] Copy marriage certificate of P.W. Atkins and G.A. Broun, married 6 March 1945 in the Registration District of St Mary's Church, West Perth ,Robert Atkins Personal Archives.
- [S436] Copy death certificate of Mary Ann Atkins, died 28 June 1903, registered 29 June 1903 in the Registration District of Drummoyne, New South Wales (NSW Registry of Births Deaths & Marriages), 1930/005774).
- [S460] Various, documents, 1881-1885, Jarrahdale, Western Australia.
- [S461] Various authors, 'The Daily News, Perth', The Daily News, Perth, various dates.
- [S462] Various authors, 'Western Mail (Perth, WA : 1885-1954)', Western Mail (Perth, WA : 1885-1954), various dates.
- [S463] Various authors, 'The Inquirer & Commercial News, Perth', The Inquirer & Commercial News, Perth, various dates.
- [S468] Portland Family History Group inc., email, 25 July 2012, PO Box 409, Portland, Victoria, Australia.
- [S888] David and Bolton, Geoffrey Black Biographical Register of Members of the Parliament of Western Australia Volume one 1870 - 1930, Office of Clerk of the Legislative Assembly, Perth, Western Australia, first edition (1990) 0 7316 9782 0.
- [S891] Copy birth certificate of Williamina Ellen de Castilla, born 7 April 1895, registered 9 May 1895 in the Registration District of unknown registration district (Department of Attorney General, Government of Western Australia, 868/95).
- [S916] Various authors, 'Colonial Times Hobart', Colonial Times Hobart, various dates.
- [S941] E. J. Davis Towards the Mist. A History of Poachers and District., Poochera, S.A. : Poochera Book Committee, Poochera, South Australia, First (1995) unknown isbn.
- [S955] Greene Family Journal of Mary Anne Greene, Ireland, 1814 - 1825 (Cobbold, Henry, ).
- [S964] Greene Family Journal of unknown name of person, unknown location, c1908 (Cobbold, Henry, ).
- [S985] Unknown author, 'The Herald - Fremantle', The Herald - Fremantle, unknown date.
- [S1013] E-mail from Richard Atkins (Richard Atkins) to Robert Atkins, dated 8 September 2016 (Robert Atkins Personal Archives).
- [S1039] Registrar of Titles, unknown record type, 29/11/1923, Landgate, Western Australia ,Landgate Registrar of Titles.
- [S1060] Unknown author, 'unknown article title', Adelaide News, unknown date.
- [S1061] Scanned original, New Zealand Insurance Company, unknown location, 26 August 1896,Robert Atkins Personal Archives.
- [S1064] Bryce Moore From the Ground Up, University of Western Australia Press, Nedlands Western Australia, unknown edition (1987) unknown isbn.
- [S1099] Website Australian Government Dept. Veterans Affairs, Nominal Rolls (https://nominal-rolls.dva.gov.au).
- [S1100] Manuscript note concerning Army Recollections, written by P.W. Atkins, circa 1970 , Robert Atkins Personal Archives.
- [S1120] E-copy, Landgate, Midland, Western Australia, 4/11/2021.
- [S1145] Typescript note concerning W Atkins Research, written by Castlemaine Historical Society, 18/4/2023 , Robert Atkins Personal Archives.