The name Ahrens seam to be quite common, My Great Grand Fathers name was Fred or FritzAhrens he was married to Marie Tackmann. I am not sure what part of Germany they came from. My grandmother name was Christine Ahrens, and they did live in the Niles Center,Ill she was marryed toWilliamSchreiber.Married in 1898. They went to St Pauls Church. then they moved to Evanston, Ill and attened Bethlehem Luthern Church, in Evanston.Don't know if we can be any connection.