I my GEDCOM posted to Ancestry.com Ihave several KINDSVATER's from Reutlingen in my personal ancestry. Some others apparently migrated from Reutlingen to the Volga Region of Russia as well. Trying to connect the entire family including descendents in Germany and US. Look for submitter cose HAHN2002 at Ancestry.com and see if you can make a connection with your family.
Kurt Hahn 222 Alexandria Dr Healdsburg, Ca 95448-3423 firstname.lastname@example.org