Hi Kellie,
Don't bother looking up that Will of D H REILLY.
I have found the death of Pearl's father, on 2 September 1917, printed in the SMH 4 September 1917.
http://trove.nla.gov.au/ndp/del/article/15758371?searchTerm=...9910/1917 REILLY DAVID H 52 YRS REDFERN REDFERN
Mary
ADDED.
In Memoriam 2 Sep 1918.
http://trove.nla.gov.au/ndp/del/article/15800786?searchTerm=...