I'm sure Lois will be along soon
in 1841 he is an apprentice miller with his bro-in-law Thomas Stephenson (h/o Jane Lord) in Glenmoy (or Glenmaye) in Kk Patrick - was his first child pre marriage ?
His bro John was in USA by 1841 - I can't find his parents in 41 nor suitable burials
The usual route to Ohio is described at www.manxnotebook.com/famhist/genealgy/voyages.htm