I can give a bit more information on George Messenger & Jane Barty’s children:
̵ Frederick George Messenger b 24 April 1879 Pt Adelaide, d 25 Oct 1964, Wooroloo Western Australia, buried Karrakatta Cemetery
̵ Ernest John Messenger b 9 Oct 1881 Rosewater South Aust., d 10 Dec 1963 (Palmyra Western Australia), buried Fremantle Cemetery; m Ada Susan Denney in 1918 (WA)
̵ Ann Minnie Watson Messenger b 15 April 1884 Pt Adelaide - d 19 Dec 1898 Payneham SA
̵ Elsie May Messenger b19 July 1886 Pt Augusta South Aust, m Robert Francis Bartlett 1905 (Brookton, Western Australia)
̵ Herbert Charles Messenger b 12 Jan 1889 Pt Adelaide, m Maud Grace Toop 1924 (Fremantle, Western Australia) d 21 Dec 1974 (Hilton Park, Western Australia).
̵ Evelyn Annie Messenger b 23 May 1891 Woodville South Aust, m John Charles Percival Price 1911 (Western Australia), d 23 Jan 1931 (Victoria Park, Western Australia)
̵ Linda Jane Messenger b 13 Oct 1893 Pt Adelaide, m Albert William Bairstow 02 Sep 1914 (Dumbleyung, Western Australia)
̵ Edith Alice Messenger b 30 May 1895 (Queenstown South Aust), d 1902 (Western Australia)
̵ Jane Barty Messenger, b 1898 (Boulder, Western Australia)
̵ Florence Winifred Messenger, b 1902 (Trafalgar, Western Australia), m Thomas Leo Pike, 1924 (Beverley, Western Australia), d 28 Jun 1990 (Mosman Park, Western Australia), buried Karrakatta Cemetery
̵ Edgar Morris Messenger, b 17 Jan 1905 (Norwood South Aust), d 08 Sep 1968 (Nedlands, Western Australia), buried Karrakatta Cemetery
If you are interested in info on George Messenger’s ancestors or siblings let me know