Who is who in the Vlieland tree

Looking for a new episode in the blog we found the Who is Who in Charles Dickens by the author C.P.Vlieland.
Curious we googled more,  and found another book by the same author .

We read on the back that he was born in Holland ,went to South Africa and now lives in England.
And yes he was already in the blog this C.P.Vlieland junior

and here more about Cornelis Pieter Vlieland senior and also of E.M.Arnold .

Cornelis Pieter Vlieland back to England

Cornelis Pieter Vlieland
 family tree of Cornelis Pieter Vlieland