Glanced at this web site for the first time tonight. Hopefully this can still reach you. All of the mentioned villages in your message are familiar to me. I have done extensive research in the area of the HAAS family and it did occassionally connect to the BOSCHERT family as well. On our direct line, Francisca Haas married Hans Boschert on 12 Feb 1872 in Oberkirche and a Norbert Haas married Maria Anna Boschert in Appenweier on 20 Apr 1871. Are either of these in your database? I also have my Haas findings posted on the World Connect site. If interested, contact me.
John