Have you looked in the SA National Archives for info?
I got 192 results on a simple search for Barnato, pretty much all of which are related one way or another.
btw, it helps if you give complete info -- his name wasn't actually Barney Barnato.
Looking at one at random:
1898, motion, James Douglas Logan versus Woolf Joel, executor of estate of late Barnett Isaacs Barnato.
which seems to be a continuation of:
1897, motion, James Douglas Logan versus Barnett Isaacs Barnato.
Woolf Joel's brother was Jack Barnato Joel, a horse man:
http://en.wikipedia.org/wiki/Jack_Barnato_Joelso there's some family connection there, but the surname would be Joel rather than Woolf.
http://en.wikipedia.org/wiki/Joel_familyAh, the wiki page links to an article about Jack Barnato Joel being Barney Barnato's nephew:
http://query.nytimes.com/gst/abstract.html?res=F70C16FF395A17738DDDA00994DF405B888CF1D3Indeed, very colourful! (the full article is linked to there)
It may be old news to you, but it may help sort out relationships. Woolf Joel was murdered in SA.
There is all kinds of stuff in SA archives. Another is a list of items held by the South African Jewish Board of Deputies relating to Barney Barnato, dated 1970. And photographs, memoirs, films ...
If you aren't familiar with the SA archives, start here:
http://www.national.archives.gov.za/Select
National Automated Archival Information Retrieval System (NAAIRS)
then select
All Archives Repositories and National Registers of non-public records
and just search and browse. To see the actual records, you have to request copies from the particular archive repositories in question, which have varying policies in that regard. (I had one ask curtly why my email had not provided a postal address so they could mail me copies free of charge, and another, which held the same document, say I would have to hire a local researcher to get a copy.)
To get the names of BB's children, just do a general search at FreeBMD for the surname:
http://freebmd.rootsweb.com/cgi/search.plIf you get a copy of the marriage certificate (how exceptionally sloppy for someone to have claimed he married the wrong woman in 1892!) it should say whether he had been divorced.
Ah. He was born Barnett Isaacs in 1851:
http://en.wikipedia.org/wiki/Barney_Barnatoso I might suspect if there was a previous marriage, it was under that name. In fact, his 1892 marriage was also registered under that name. There are four Barnett Isaacs marriages in London 1876-1889, but given that he went to SA in 1873, none is likely him, unless he travelled back and forth.
edit - hang on - the wiki article says "He was married to Leah (daughter of Solomon) Harris."
But apparently not in England. (For the 1889 marriage in London, one of the possible brides is Hannah Harris.)
edit edit - and that seems seriously muddled. This looks like the actual situation:
http://www.geni.com/people/Leah-Isaacs/6000000003071284013Leah Harris, born 1816, daughter of Solomon, married Isaac Isaacs and was the *mother* of Barnett Isaacs / Barney Barnato.
The Isaacs family is in Spitalfields in 1861, father Isaac widowed.