James Blackman was born circa 1792 in Woolwich, Kent, England, United Kingdom to James Blackman (1759-1842) and Elizabeth Harley (1765-1842) and died 22 March 1868 Redbank, Mudgee, New South Wales, Australia of unspecified causes. He married Mary John (1799-1848) 18 July 1814 in St Peters, Richmond, New South Wales, Australia.
Children
| Name | Birth | Death | Joined with |
| James Henry Blackman (1816-1855) | 18 February 1816 Richmond, New South Wales, Australia | 15 January 1855 Cooyal, New South Wales, Australia | Elizabeth Aldridge (1818-1890) |
| Thomas Harley Blackman (1818-1879) | 7 June 1818 Richmond, New South Wales, Australia | 9 September 1879 Cooyal, New South Wales, Australia | Mary Ann, a Gamilaroi woman (c1825-1857) Bridget, a Wiridjuri woman (bef1831-aft1851) Catherine McCann (1829-1894) |
| Martha Blackman (1821-1844) | |||
| Charles Edward Blackman (1824-1914) | 1824 Kelso, New South Wales, Australia | 31 January 1914 5 Morgan St, Merewether, New South Wales, Australia | Hannah Barnes (1831-1924) Casiah Elizabeth Hill (1849-1913) |
| Mary Ann Blackman (1831-1864) | |||
| John William Blackman (1833-1835) | |||
| George Harley Blackman (1833-1835) | |||
| Elizabeth Blackman (1837-1929) | 15 May 1837 Mudgee, New South Wales, Australia | 1929 | Edward Aldridge (1826-1909) William Henry Dexter (bef1870-) |
Footnotes (including sources)
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