Keep in mind that a last name that may be unusual in one area may be very common in another. The name Schulmeyer is not too common in Iowa where my wife's relatives settled in the 1850s. Yet when I looked at the church records for Beberstedt, where the family was from, there were several of them.
It seemed like when looking at the church christenings like half the births were either to a Schulmeyer mother or a Schulmeyer father. A slight exgaggeration perhaps, but close enough to the truth to keep me on my research toes.