For Van Leuken there are 16 on Yasni with different names.
Among the most common last names on Yasni Van Leuken is on position 4511.
Van / van = of / from The word Van stands between first and last name. It is the union of V which connects names. Van has also possesses it. It is Van mine.
(Sent from Yasni user)
Leuken means "enclosure". A piece of land enclosed with a wooden fence, or with tree branches, etc
(Sent from: Ben van Leuken)