I believe that Martin Hladik and Matej Hladik were brothers. I found the ship manifest record with Matej Hladyk travelling to Johnstown to his brother, Martin. I am curious about the maiden name of Martin Hladik's wife. Do you know it?
Travelling with Matej Hladik on that voyage in 1900 were Aloys and Teresa Palkovic. I don't know if they were cousins, but I believe that Teresa became Matej Hladik's wife about 1903.