You may want to start with the locations listed in http://www.geopatronyme.com/cgi-bin/carte/francecom.cgi?numero=0045441&periode=1&dept=57 for Oberle in Moselle during 1891-1915 and then move on to the ones in Bas Rhin and Haut Rhin later since you think she was from Moselle. The surname Abba is only listed in Moselle in Walscheid and is not listed at all in Alsace for that time period. It is not very far from Dabo or Lutzelbourg, two of the top listings for Oberle. You could also try going through the Oberles and Abbas in geneanet.org and try to find them. "I'm trying to locate a Rosina Oberle, who was born 19 March 1801, most likely in Moselle and her husband Jean Abba.  The family emigrated to Cincinnati, Ohio, around 1836. ..." You may also want to check for an obituary in or near Wilder, Campbell county, Kentucky, USA based on the following that lists a Rosina Oberle with the same birth date. It is possible that they are the same or that you have some info crossed. http://files.usgwarchives.net/ky/campbell/cemeteries/stjoej-p.txt Oberle,Rosina Abbe-married Krebs-19 Marz 1801-14 Mai 1882 Good luck, Dave