Anna Catharina Jacobs

According to DN she was

SES EN TWINTIG JAREN  ELF MAANDEN EN 25 DAGEN 

when she died on 12 November 1874 which gives a calculated DoB of December 1847 --
This is AFTER marriage of her parents (15 Feb 1847) so Pieter/Petrus was HER BIO father.? o
This at least gives a date to look for in the baptism records.
Perhaps she was baptised in Riversdal - the parish where her parents married/

DN 1874 d.o.b. 1847 : https://www.familysearch.org/ark:/61903/3:1:3QSQ-G9LW-P9J3-B?cc=304...

Marriage 1863 d.o.b 1847 : - https://www.familysearch.org/ark:/61903/3:1:3QSQ-G9Q5-CBSP?i=21&cc=...

Both parents born before 1826 _- Meerderjarig 15 February 1847 and father married before !

Plaas Zoutpansfontein : a farm and is located in Frances Baard District Municipality, Northern Cape, South Africa. Formerly Cape Colony in 1874 The estimate terrain elevation above seal level is 1134 metres.