Pierce Brigginton Collits was born in 1765 in Thomastown, Kilkenny, Ireland. He died on 19 September 1848 in Hartley, New South Wales, Australia. When he was 30, he married Mary F. Hardwick in 1795 in Stepney, Middlesex, England.

Convict Number: (#UNKNOWN) Crime: July 1800 (Convicted Old Bailey - receiving a quantity of stolen muslin, lace, handkerchiefs, and other goods - 14yrs) He was employed as a Emancipist, Farmer, Police Officer, Postmaster, Public Servant, Publican in 1801. Immigration: Arr.: 14 December 1801 (Per "Minorca" to Sydney, New South Wales, Australia)

Pierce Brigginton Collits and Mary F. Hardwick had the following children:

1. Sarah Collits was born on 10 September 1797 in Sweedland Court, London, England. She died on 18 May 1867 in Cadow, New South Wales, Australia. She married John Watkins on 9 September 1816 in Castlereagh, New South Wales, Australia. She married Michael Scott on 1 January 1846 in St Bernards, Hartley, New South Wales, Australia.