John was born 1770, Marlow Buckingham England, he enlisted into the NSW Corps in Jun 1789 England; arriving in NSW aboard the Britannia in 1791.
At some stage he went to Norfolk Island, returning aboard HMS Reliance arriving in Sydney Mar 1796. He formed a relationship with Sarah WISE, Convict, Indispensible, 1796. Their first child was born Mar 1797 in Sydney,
John Roberts and his common law wife Sarah Wise (NSW Corps wife) and their two children John and Elizabeth Wise (NSW Corps Children) travelled to Norfolk Island aboard HMS Porpoise in Jan 1801.
1802 John Roberts: Private in NSW Corps
1805 Sarah Wise: Female convict, off stores
1808 – 1810 Sarah Wise: Free Woman, sentence expired.
1805 – 1809 John Roberts: member of the NSW Corps.
The Roberts family of private John Roberts, Mrs Sarah Wise and their children John, Elizabeth, Sarah, Rosanna, Mary Sophia, George and James Wise, left Norfolk Island aboard the Lady Nelson in Apr 1810, travelling to Sydney.
1814 Sarah Wise, on stores, wife of a veteran, with eight children on stores. No record of marriage has been found for John Roberts and Sarah Wise.
1828 John Robberts: age 50 years, Pensioner, Pitt St Sydney.
1828 Sarah Robberts: age 56 years.
John Roberts died 20 Oct 1840 Sydney, buried Devonshire Street Cemetery Sydney. Sarah Roberts died 22 May 1850 Sydney, buried Devonshire Street Cemetery Sydney.
 HMS Porpoise, AJCP, ADM36, PRO Reel 7012, 15488 and Reel 7013, 15489
- HMS Reliance from Norfolk Island to Sydney March 1796
- HMS Porpoise to Norfolk Island January 1801
- NSW Corps 1804 Norfolk Island
- NSW Corps 1802 Norfolk Island
- NSW Corps August 1806 Norfolk Island
Includes extracts from Norfolk Island Baptisms, Burials and Marriages 1801 – 1806