Hi there,
Sorry that I am only seeing this so many years after you posted it. There are quite a few Willmores in South Africa who mostly belong to the branch of John Willmore (b 1687)through Benjamin Willmore (1774 at Flitton w Silsoe, Bedfordshire) and Sarah Howson (b 1778). One of Benjamin's sons, Gregory, came to South Africa in about 1827, after having fought in the Battle of the Nile under Lord Nelson.
Rgds
Flick Willmore (married to the gr gr grandson of Gregory