Jakob was born before 1790.
"Deutschland Heiraten, 1558-1929," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/J4L4-17C : 11 February 2018), Jacob Dennler in entry for Friedrich Dennler and Margretha Wundt, 05 Aug 1828; citing Evangelisch, Freistett, Offenburg, Baden; FHL microfilm 1,189,677.
"Deutschland Geburten und Taufen, 1558-1898," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VHQ3-GZ1 : 11 February 2018), Jakob Dennler in entry for Friedrich Dennler, 29 Dec 1807; citing ; FHL microfilm 1,189,674.
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