I offered my help: http://boards.ancestry.com/localities.eeurope.slovenia.gener...
What did your ancestor considered himself to be Slovenian; Slovak; Ruthenian; Polish; ? >
In Poland: KUCHAR;
In Slovakia: KUCHAR
in Slovakia: LACO and LACZO
in Czech Republic: KUCHÁŘ
in Slovenia: KUHAR
Its all in LOCATION, LOCATION, LOCATION. Do you know where your ancestor was born?
Former Yugoslavia, former Czechoslovakia?
Maybe all you have is Austria-Hungary http://brainworker.ch/Oesterreich/Austria-hungary.png