Yates in Victoria Australia

Looking for connections to the Yates family in Victoria - primarlly the Colac Region.

1st Yates - Johnathan Yeates/Yates - b: abt 1805 England, m: Mary Barnes
2nd Yates - William Yates b: 1835 Somersetshire England, d: 1912 Colac Aust. m: Mareclla SLACK
they had 7 children,
William - 1862/1994,
Francis - 1864/1928,
Philip - 1867/? aft 1897
John - 1869/1917,
George - 1872/1902,
Thomas - 1874/1901,
Mary Ann - 1878/1947

Trying to track down the descendants of Philip Yates m: Ada Ethel Maud b: 1866, d: 1901
Their only surviving child
Lily Kathleen Laura b: 1893 Hamilton Victoria, d: no idea

Lily's records evaporated after the death of her mother at the age of 7yrs, There is no records to show what happened to Lily after her mother died - she does not show up again until the birth of Arthur b:1910 and again for the birth of Walter b:1912. This leaves a 9yr gap of her life unaccounted for.
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After the birth of Walter she disappears again until her marriage to Thomas Henry Fry b: 1872 SA, m: 1927

After Thomas's death in 1934, she sells the deed to his grave but the name on the transfer papers is unreadable. Thomas was previously married and had children.

We have for many many years been trying to locate the life of Lily and her oldest son Arthur. both of the boys were in and out of Boy's home but the most of the records where destroyed by fire. Originally called the Ragged Boys Home and later called Menzies Boys Home.

Lily's life story may lie in the hands of her Aunt Mary Ann Yates b:1878 and Joseph Augustine HOY b: 1869

Any help is gratefully appreciated.