So one would assume then that she married a Burgess somewhere, most likely in SA, but who did she follow there??
If she married Burgess in SA, it would be harder to find. There are records but a lot of them aren't indexed and I didn't find anything for her amongst the indexed ones. Why would she have left Nielsen to travel to SA on her own? And so soon after her marriage to him.
Is there any mention of what Regina did? If she was a nurse, she could have gone to SA with a nursing corps?
She must have left shortly after the census was taken in 1901, she would have had to have been in Pietersburg before July 1902 if Elsie was born Apr 1903, doesn't give much time given the voyage and travel across country from either Cape Town or Durban.