Private User says that Christiaan Frederik Krause, b2c1d4 is recorded in SAG as having married Elisabeth Smit, but no dates are given in the entry for the marriage.
I've been looking through records, and have discovered that it was actually a man named Christiaan HENDRIK Kroese who married Elisabeth Smit/Smith, and that he was the son of Jan Kroese and Wilhelmina Magdalena Unk from the Swartland: "South Africa, Cape, Probate Records of the Master of the High Court, 1822-1990", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QP4Z-TH4Q : Sun Mar 10 01:18:17 UTC 2024), Entry for Christiaan Hendrik Kroeze, from 1856 to 1859.
Definitely not the same man as Christiaan Frederik Krause from Uitenhage. The SAG entry for Christiaan Frederik Krause appears to be incorrect
So Elisabeth Smith and her three children on the Geni tree need to be disconnected from Christiaan Frederik Krause.