TRIERWEILER Hard To Find Surnames › Category: T Surnames › TRIERWEILER 0 Vote Up Vote Down Marilyn asked 8 years ago Looking for information on Franziskus Trierweiler born in Prussia and Mary Freyman born in Luxembourg. In 1870 Federal census living in Washington, LaCrosse Co, Wisconsin. Between 1870 and 1873 they moved to Dubuque County Iowa. AD