Jan Abraham was die seun van Jacobus Nel en Anna Jacomina van Wyk.
Source: Nederduits Gereformeerde Gemeente (NGK), Swartland (Malmesbury), Baptism register, 1745-1782, page 73. Repository: NG Kerkargief, Noordwal-Wes, Stellenbosch, G5 3/2. Note: Folios 13 and 14, two sides of one page, are almost certainly missing between the current pages numbered 12 and 13 - dates covered would be late August 1751 to early June 1752.. Transcribed by Lizette Svoboda, from photographs of Cape Archives VC 666FAMILYSEARCH
Cape Province archive records 1792 – 1992. Clanwilliam census records 1829 – 1832. Vol j34-j36