Very interesting question. I have been trying (so far unsuccessfully) to make a connection between the old world and the new for a Michael Gassmann (see Gaßmann-158 and Gaßmann-256). Even though he shares my last name, we are not, to my knowledge related. (I came across him several years ago during a "Connection Challenge" and picked him because of the shared last name.) Gaßmann-158 was born in Birlenbach, Bas-Rhin, and I would be very grateful for any assistance in finishing the job I started way back when.