For Hadler-Olsen there are 2 on Yasni with different names.
Among the most common last names on Yasni Hadler-Olsen is on position 4525.
Derived from the land "Hadeln" originally. (They say)
(Sent from: Detlef Hadler)
the meaning of the name "olsen" is quite simply: son or ole! if you're interested to kwon more about this subject, you may always contact me on sigurd.olsen @ skynet.be Ciao!