In my opinion his father's name was Stefan (or Stepan - but this is no polish but ukrinian pronunciation) Józefczyk.
His uncle was Jan(John in english) Stafinski.
Joliet Ill. maybe Collin st. 133 ???
You can see this site:
http://www.ellisisland.org/search/matchMore.asp?FNM=Mihal&am...Regards Darek