Are you sure about the relation from Pastoret down to Slovakia. This is not a usual way to emigrate. My Pastorek/Pasztorek are from Frivald (now Rajecka Lesna) as far as I can trace them and I think the original root is from there. A few of them emigrated to Ohio between 1880 and 1925 to settle there. You apparently live in Luxembourg, are you French speaker? If yes it should be easier to communicate this way.