Hi Kathy,
I think Edward HAMMER/HAMMIL spent time in Goulburn Gaol in 1889.
http://trove.nla.gov.au/ndp/del/article/44042066?searchTerm=... Hammer"&searchLimits=l-title=53
This story below, states that William HAMMILL was in Goulburn Gaol. The Police Gazette, column 1, 20 Nov 1889, named the prisoner as Edward HAMMIL, whose wife lived at Silverton.
http://trove.nla.gov.au/ndp/del/article/150627841?searchTerm... at silverton"&searchLimits=
http://trove.nla.gov.au/ndp/del/article/44087753?searchTerm=... Hammer"&searchLimits=l-title=53
Mary