"Deutschland Geburten und Taufen, 1558-1898," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NZN7-8LG : 10 February 2018), Peter Langel in entry for Sebastian Langel, 13 Feb 1875; citing Dormagen, Rheinland, Preußen, Germany; FHL microfilm 939,289.