My grandfather sang a song to me in the late 60's about the Kimberly Diamond mines he had passed by during the Boer War. Does anyone know anything else about the song and the remaining lyrics?

I've just returned from Kimberly, the place where diamonds grow,
And mister________ _________ is me style.
I'll buy up all the racing yachts and then I'll buy the earth,
And I ain't a bit particular what the price is,
For I'm the diamond king and the ladies like my style.
They can't resist my smile. I kill at half a mile.
O those diamonds! I'll dazzle them everywhere.
I'm a regular Barnie Bernatta. I'm a real live millionaire.

Thanks in advance.