Adrien,

If your John the Baptist Holdener is the same as mine, then check out http://www.holdener.com/genealogy/app/index.php?fam_id=745. John the Baptist Holdener b. 1758

I did not know of Catherine, but both Holdener and Fassler are old surnames in Schwyz.

I also know many Holdeners immigrated to the St. Louis, MO area in the late 1800s (I live in the area).

Good luck in your search and please share any information you may have that I do not.