GULBRANDESEN/TORGER NELSON-WHERE?

LOOKING FOR MY GRANDFATHER'S FAMILY.
HIS NAME IS REINHARDT (T)FORGUSON. MY MOTHER SAID HE CAME FROM OSLO(CHRISTIANIA). HIS PARENTS ARE GURINE GULBRANDSEN AND TORGER(FORGER) NELSON. THE MEN WERE FISHERMEN.HE HAD BROTHERS AND A SISTER IN NORWAY. MY GRANDFATHER CAME IN THRU MASSACHUSETTES(ACCORDING TO CENSUS RECORDS)
ANYONE HAVE ANY INFO??!!
THANKSMARYELLEN