Steyn: unknown relations

There are records for the following Steyns, but how they fit into the lineage puzzle is presently unknown.

Anna Aletta Steyn (died 1921.04.21 estate no. 440550) was married as the widow Van Der Walt to Jacob Breed (s.o. Petrus Gerhardus Breedt & Susanna Maria Fourie) 1831.04.13 -- 1912.12.03
Anna Aletta Steyn (d.o. Douw Gerbrand Steyn) was married at Colesberg 1841.10.04 to Phillippus Jacobus Van der Walt born 1822.07.15
"Familie van der Walt in Suid-Afrika" p243 -- Barend J Venter bjven@intekom.co.za
Marthinus Steyn ~1775.04.13/6 - 1834.10.17
Michael Hendrik Steyn died 1897 Kareepan, Kimberley
married Anna Susanna Jansen van Vuuren born aprox 1867
Barabara Steyn ca 1800
Johan Andreas Steyn 1804.10.13 - 1857.03.18
Pieter Gysbert Steyn 1804.10.13 - 1857.03.18