For Bleckmann there are 94 on Yasni with different names.
Among the most common last names on Yasni Bleckmann is on position 4433.
According to my records, which date back to the years around 1400, it was a good "op the Bleek (bleach) in Velbert, were called from the name of the first born always entstand.Die Wilhelm.
(Sent from: Gerhard Bleckmann)