Do you have an old address? I do see that in www.surnamenavigator.organ Anton CSIKOVA shows but no place of birth mentioned. OK, went looking in Ellis Island.www.ellisislandrecords.organd see an Irma CSIKOVA whose residence is Philadelphia, Pa. Her husband is Anton Csikova.They must be in your family tree.Irma's place of birth is Residea, was in US 1905 and 1908. She does list herself as German.www.genealogienetz.de/reg/ESE/dsinfo.htm left a mother-in-law Cath. Csikova in Residca.