Thank you so much for these records, and for alerting me to these German archives being available online. The marriage record is a duplicate, but gives some additional information.
I'm sure you meant to type Joseph's birth year as 1826 rather than 1849, the year he was married.
I see Geburtenbuch 1810-1870 is in the Freiburg archive. I've accessed the Freiburg menu, and can maneuver inside the books you've linked to, but I can't see how to access other vital records books for other towns like Eberweier and Appenweier. If you could show me how to do that I'd certainly appreciate it.