On 1861 census Elizabeth
KEHOE was living with her sister in law Margaret
RUMBOLD and Jane is 5 months of age.
Elizabeth is noted as a "Wife' on the passenger manifest not Widow.
There are no surviving census in Australia other than some very early ones.
I notice that Elizabeth died at Northcote - the suburb where the Little Sisters of the Poor housed the aged and infirm.
http://heritage.darebinlibraries.vic.gov.au/article/342http://www.littlesistersofthepoor.org.au/melbourne.htmlMention of Ernest
WENDT in 1887
http://nla.gov.au/nla.news-article197166271Melbourne General Cemetery Roman Catholic Section ZA 258A
In loving memory of Ernst WENDT
died 13 Nov 1914
57 yrs.
also Albert
son of above
died 2 Oct 1916
23 yrs.
also Elizabeth KEHOE
died 7 Sep 1902
82 yrs.
also Ernst WENDT
eldest son of above
died 9 Jul 1919, 25 yrs.
Jane WENDT
30 Dec 1946
86 yrs.
(Shamrocks on headstone)
Jane's children were born at Carlton, Essendon, Brunswick and Essendon.
Elizabeth is not in any directories however if she lived as a lodger or with others only the owner of the property is usually listed.
Sands & McDougall 1892 Directory
WENDT Ernest Mcpherson Street, Moonee Ponds
Sands & McDougall 1900
WENDT Ernest 61 Winchester Street, Moonee Ponds
Australian Electoral Roll
1903
WENDT Ernest William 117 Pascoe Vale Road, Moonee Ponds Manufacturer
WENDT Jane 117 Pascoe Vale Road, Moonee Ponds Home duties
Ernest's second given name is different in this notice
http://nla.gov.au/nla.news-article22399337The Argus 1 Jan 1947
DEATHS
WENDT On December 30, at private hospital, Kew, Jane Wendt, of 117 Pascoevale road, Moonee Ponds, relict of the late Ernest Albert Wendt, and loving mother of Ethel (Mrs. T. Farrell), Violet (Mrs. F. L. Yott), Ernest (deceased), Albert (deceased), Oscar, Alice (Mrs. A. Owen), Melinda (Mrs. B. Wilding, deceased), Mary, and Imelda (Mrs. W. Wallace), aged 86 years. —Requiescat in pace. (Privately interred.)
Jane and Ernst have probate files at PROV. Ernest's occupation at the time of his death was safe maker and you can download his file however Jane's is not available online, you would need to order and purchase it.
http://prov.vic.gov.au/index_search?searchid=54Cando