The Dictionary of Australasian Biography/Blackmore, James Newnham
Blackmore, James Newnham, J.P., brother of the foregoing, was born in 1836, and was employed in the South Australian Chief Secretary's office from 1854 to 1857, when he was appointed Assistant Clerk and Sergeant-at-arms in the House of Assembly. Nine years later he became Secretary to the Commissioner for Crown Lands, and in 1870 Under Treasurer, a post which he held till his death, which took place in Adelaide on April 7th, 1875.