The date of birth for Nicolaas Claassen is incorrect. His son Gert Johannes Claassen was born 1885 i.e. he's ten years older than his father. Further Maria Magdalena Olivier was born 1861, so Nicolaas is 34 years her junior?
I believe this Nicolaas Claassen was born 1860 and first married Maria Magdalena Olivier. She passed away 1883 and he remarried to Francina Jacoba Gerber.
Would appreciate some input from Managers before I correct this profile.