For Koepke there are 456 on Yasni with different names. The most frequently searched first names for Koepke are: Michael
Among the most common last names on Yasni Koepke is on position 4071.
I heard that the name Koepke originates in Plattdeutsch (similar to Dutch), spoken in Northern Germany where the son of Jacob was referred to as "little Jacob", or Jokobjie.
(Sent from: Jan Nikolaus Kopke)