1866 birth records

i'm trying to find info on charles lewis born 5/11/1866 oslo, norway.his parents where harry lewis and sophie hansen.he left norway at around the age of 3yrs.old(sometime in 1869 i guess)the only information i have on him is from his death certificate and would like to find out anything i can for a family tree.it lists his parents as both being born in norway.any help would be appreciated.thanks, bill lewis