"Deutschland Geburten und Taufen, 1558-1898," database, FamilySearch (
https://familysearch.org/ark:/61903/1:1:NTNL-6HP : 28 November 2014), Heinrich Friedrich Frengel in entry for Marie Louise Frengel, 05 Sep 1847; citing ; FHL microfilm 70,352, 70,353, 70,354, 70,355, 70,356, 70,357, 70,358.