You need to locate a name of a town in order to proceed with the research. If your ancestor had social security numbers or was naturalized citizen than those forms would have the name of a town. http://ssdi.rootsweb.comhttp://ssdi.rootsweb.com Take a look in Ellis Island website to see where the other LEXAs, LEKSAs were from. www.ellisislandrecords.org The former country of Czechoslovakia in 1993 separated into Czech Republic and Slovak Republic. www.rat.de/kuijsten/navigator www.genealogienetz.de/reg www.iarelative.com www.csagsi.org www.cgsi.org www.ncsml.org www.genea.ruzne/svet.htm#13.D www.czechheritage.net/genealogy.html Do post on all the boards that apply to your surname.