The town you mention "Brücken" is not necessarily in Bavaria. One of the main Schuck lines comes from Brücken in Rheinland Pfalz (between Kaiserslautern and Saarbrücken). Do you know when Joseph Schuck emigrated and when he was born ? My family originally came from Brücken. In this line, many Joseph Schucks appear. I have got all available church books from the Schucks from 1932 back to 1500 and also the Schuck´s coat of arms from 1532.