Petrus Abel Louw was die seun van Jacobus Johannes Gideon Louw Nel en Anna Maria Louw.
Uit hulle ouma Hester Josina Louw se sterfkennis van 1886:
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g.3. Petrus Abel Louw NEL, geb. 10/02/1867, ged. 24/03/1867
g.3. Petrus
Abel Louw, geb. 10/02/1867, ged. 24/03/1867, Calvinia, oorl. 30/08/1894 x
26/09/1887, Calvinia met Christina Jacoba Martina LOUBSER, geb. 15/06/1870, oorl. 08/10/1957, d.v. Willem Adriaan Loubser
en Helletje Maria Louw Strauss. CJML xx Petrus Abel Nel.
