The Slovak phone site is at www.zoznamst.skand the name HORVATH, MIHAK, MIHOK, CERNY, MELICHAR exist in Slovak Republic.
I looked on the manifest and I noticed that he said that he is Slovak. So than your research would take you to Slovak Republic and not Romania. The LDS-Mormons (Family History Center) have filmed the church records so you can gather ancestral information off of. Two websites to familiarize yourself with the church wording: www.bmi.net//jjaso www.iabsi.com/gen/public/CensusMain.htm