Re: Andrejko?? Hungarian or Slovakian?
The name Andrey is origined of the Greek Andreas (means man, manfull/manlike), and went to the Easter Slavic languages as Andrey. The -ka; -ke; -ko is diminutive in the Slavic languages, as same as it came into the Hungarian language beside the archaic d and cs.
The variations of the firstname in your area:
András - Hungarian
Ondrey - Czechish, Slovakian
Andrey - Rumanian, Russian, Bulgarian, Ruthenian (in Slavic is Rusyn), Ukrainian, Belorussian etc
The name is naturally popular (Andreas was brother of St Simon-Peter), my younger son also András. Its Slovakian, Czechish nickname is Ondrus, Ondrusek.
So, only by the name your ancestor could be Ruthenian, Ukrainian or Russian (Rusyn in Slavic) and I can imagine he was Greek Catholic, as most of Ruthenians are. But in the same way he could be all most of nations, which are living in that area: Hungarian (especially because mostly only in the Hungarian is frequent the firstname as a surname), Ruthenian, Ukrainian, Rumanian etc........
But ........ may I propose you, let you to the end the ethnicity. It will came out by itself, now your more important job to find the necessary documents, signs in the prayer books, any letters, envelopes or photos. By them you will be nearer to them - and to yourself.
Otherwise Topolany (the "y" is told as the i in your in) is the Slavized name of the original name Topolyán, what means in English aspen Poplar. Michalovce originally Nagymihály (Mihály is Michael, nagy means big; the ly in Hungarian is told as your y eg in the word york) and in the history also Topolyán and more villages integrated to the continuelly grown Nagymihály (these Hungarian names interested in only to make easier your research)
You can find them in this wonderful map, in the age of your ancestors and lived relatives. http://lazarus.elte.hu/hun/maps/1910/zemplen.jpghttp://lazarus.elte.hu/hun/maps/1910/zemplen.jpg
Have a nice results, if you need translation you can scan the document in the rootsweb Hungarian or Slovakian general boards. Maybe it can be more useful to the Hungarian general board - you can find there also fine persons as Zlatica Beca and so on.
With the bests: lajos reich, Hungary.