Hello Dick, a possible motive to emigrate in the 1830s was the end of the serfdom and of compulsory labor and tithe. The abolition of the serfdom (and of compulsory labor) was in the older parts of Baden in 1783 in the newer in 1820 and 1825. Former serfs had to pay factor 18 of the former annual tributes to the former master. The abolition of the tithe was in 1833. Former payer of tithe had to pay factor 20 of the former annual tithe. I know the Fischbachs owned some fields and vineyards in Niederschopfheim. - Wendelin