E Keon possibly has some connection with Ernest Keon who also appears in the Album. Michael Tobyn Keon and Bridget Helena McCormick had three daughters who seem to be the right age for this person: Belinda Gertrude, born 9 Sep 1866 in Launceston; Ada Mary, 1869 in Ballarat, Victoria; and Maud Mary, 1871 in Launceston.
Alternatively, this may be Edith Mary Keon, known as Ethel, who was born in Launceston on 18 Feb 1875 to Philip and Mary (nee Crocker) Keon. Ethel moved to Melbourne and married Henry Isaac Cohen in 1901. He became a prominent lawyer and MLC for Melbourne Province from 1921. Ethel was a cousin of Ernest Keon.
Prue McCausland Sep 2011; Don Blue April 2019