My friend's last name is Kohlman.

My friend's last name is Kohlmeyer.

The Kohlmeyers are a well-known family in the town.

The Kohlmeiers are a family of talented musicians.

My friend's last name is Kohlmeier.

My friend's last name is Kohlmann.

The Kohlmanns are a family of talented musicians.

Kohlberg is a common surname in Germany.

The Kohlbergs are a prominent family in the community.