Hannah Eliza Hammond Gravesite

I am looking for Hannah Eliza Hammond's gravesite. She was born Hannah Eliza Leeder March 1818, married Charles Foster Clarkson March 1837. Charles disappeared to the Victorian goldfields & died 1853.
Hannah re-married, to John Enoch Hammond October 1858.

John Enoch Hammond died in an earth fall at Toodyay WA in 1892, and Hannah died 15/08/1901, as per WA Births, Marriages & Deaths.
I have checked records for Toodyay, Northam, York East Perth and Metropolitan Cemetery Board records.