Jacobus Adriaan was die seun van Jacobus Willem Adriaan Nel en Jacoba Hendrika Louw.
Uit hulle ma se sterfkennis van 1895:
FAMILYSEARCH
(https://www.geni.com/people/Jacobus-Adriaan-Nell-g1h9/6000000018989554430)
(https://www.geni.com/people/Catharina-Maria-Sophia-Beukes/6000000019109618322)