NSW Marriage 153/1856 BLACKMAN THOMAS - McCANN CATHERINE SYDNEY * 4 Mar 1856
NSW Birth 7291/1862 BLACKMAN JAMES THOMAS CATHERINE DUBBO * 22 Jan
Looking for their deaths, thanks.
BLACKMAN THOMAS 7065/1879 JAMES - MARY - MUDGEE
Australian Town and Country Journal (Sydney, NSW : 1870 - 1919)
Sat 4 Oct 1879
BLACKMAN.—September 9, at his residence, Blackwood Valley, Coogal Creek, Thomas Blackman, the second eldest son of the late James Blackman, senior, of Mudgee, after a long and painful illness, in his 61st year, leaving a wife and eight children to mourn their loss. May he rest in peace. Amen.
https://trove.nla.gov.au/newspaper/article/70973502
https://trove.nla.gov.au/newspaper/article/223775678
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BLACKMAN CATHERINE 8804/1894 PATRICK - MARY - MUDGEE
I couldnt find a notice for Catherine.