Michael Conway Arrived NY, USA October 25, 1850 from Liverpool

I am looking for more information on Michael Conway who arrived in New York in October of 1850 from Liverpool port on the Montezuma ship. His estimated birthdate is 1839 in Ireland. He married Cathrine McNulty once he settled in the US and lived in Baltimore, Maryland. Does anyone know where else I can look to find out which part of Ireland he originally came from? I have no information on his parents. All I know is that he left from Liverpool in October of 1850 and was 11 years old.