To get things going on the Board, here is my BRABYN brick-wall. Any information or help would be greatly appreciated.

Joseph BRABYN, b. unknow, d. unknown married Dorothy ?? and they had at least three children - George (b. Pelynt, Cornwall, England; d. abt 1769), John & Joseph. George married a Joanna JAGO & their eldest son John Frederick came to Australia in 1796 - he was a Captain in the NSW Corps.

You will find much more information on this line at:
http://marrwatts.tribalpages.com/
including photos, certificates and newspaper reports.

I have included below an outline descendant report for Joseph which may help put his line into better context. Capitalised surnames indicate my direct-line interest.

ODR for Joseph BRABYN
======================
..... 1 Joseph BRABYN b: Unknown, d: Unknown
..... + Dorothy 'W/Joseph BRABYN' __________ b: Unknown, d: Unknown
........... 2 George BRABYN ( - 1769) b: Unknown in Pelynt, Cornwall, England, d: Abt. 1769
........... + Joanna JAGO b: Unknown, d: Unknown
................. 3 John Frederick BRABYN (1758 - 1835) b: Abt. 1758 in Pelynt, Cornwall, England, d: 31 Jul 1835 in Windsor, New South Wales, Australia
................. + Marya Marta Manuela Soria SERRANO (1761 - 1794) b: 24 Mar 1761 in Zaragoza, Aragon, Spain, d: Abt. 1794
....................... 4 Jennifer Ann BRABYN (1794 - 1871) b: 1794 in Flanders, Belguim, d: 01 Jan 1871 in Ellerslie, Victoria, Australia
....................... + James TAIT (1796 - 1874) b: 1796 in Edinburgh, Midlothian, Scotland, m: 1845 in Belfast, Victoria, Australia, d: 1874 in Warrnambool, Victoria, Australia
............................. 5 Isabella TAIT (1833 - ) b: 09 Aug 1833 in Launceston, Van Diemen's Land, Australia, d: Unknown
............................. + John Marr STONEHOUSE (1823 - 1873) b: 07 Jun 1823 in Launceston, Van Diemen's Land, Australia, m: 1847 in Belfast, Victoria, Australia, d: 24 Sep 1873 in Panmure, Victoria, Australia
............................. 5 George Tait (1832 - 1908) b: Abt. 1832 in Launceston, Van Diemen's Land, Australia, d: 1908 in Mortlake, Victoria, Australia
............................. + Elizabeth Kennedy (1829 - 1879) b: 1829, m: 1857 in Belfast, Victoria, Australia, d: 1879
....................... + Peter Burnett French Mills (1784 - ) b: Abt. 1784, m: 23 Jan 1810 in Port Dalrymple, Van Diemen's Land, Australia, d: Unknown
............................. 5 John Brabyn Mills (1810 - 1877) b: 10 Dec 1810 in Launceston, Van Diemen's Land, Australia, d: 1877 in Echuca, Victoria, Australia
............................. 5 Jennifer Ann Mills (1811 - ) b: 11 Mar 1811 in Launceston, Van Diemen's Land, Australia, d: Unknown
............................. 5 Charles Frederick Mills (1812 - 1855) b: 02 May 1812 in Launceston, Van Diemen's Land, Australia, d: 1855
............................. 5 Eliza Sophia Mills (1814 - 1860) b: 24 Mar 1814 in Launceston, Van Diemen's Land, Australia, d: 1860
....................... 4 John Frederick Brabyn (1788 - 1806) b: Abt. 1788 in Flanders, Belguim, d: 1806
................. + Sarah /Howard Elliott b: Unknown, m: 14 Oct 1802 in Sydney, New South Wales, Australia, d: Unknown
....................... 4 Mary Louisa Brabyn (1802 - 1884) b: 16 Jul 1802, d: 19 Sep 1884 in Singleton, New South Wales, Australia
....................... + John Gaggin b: Unknown, d: Unknown
....................... 4 Elizabeth Howard Brabyn (1805 - ) b: 16 Jul 1805, d: Unknown
................. + Mary Allyn (1763 - 1796) b: 1763 in Cornwall, England, d: 29 Apr 1796 in Norfolk Island, New South Wales, Australia
................. 3 John Brabyn (1753 - ) b: 19 Jan 1753 in Pelynt, Cornwall, England, d: Unknown
................. 3 George Brabyn (1755 - ) b: Abt. 1755 in Pelynt, Cornwall, England, d: Unknown
........... 2 John Brabyn (1726 - ) b: Abt. 1726 in Pelynt, Cornwall, England, d: Unknown
........... 2 Joseph Brabyn (1732 - ) b: 01 Oct 1732 in Pelynt, Cornwall, England, d: Unknown