The marriage Philipp Kuechler and Susanne Fehrenbach was in Mannheim 03.november 1819.
The marriage entry is here:
https://www2.landesarchiv-bw.de/ofs21/bild_zoom/zoom.php?bes...The birth entry Julius Kuechler 02.may 1825:
https://www2.landesarchiv-bw.de/ofs21/bild_zoom/zoom.php?bes...It is not easy to read.