My husband's line of the family we have come to a road block for his grandfather (nice place to hit a road block huh? didn't get very far.)

Info:
Ernesto (or Ernest) Gaspare? De Ambrosio (or one of the many other spellings I've come across - deAmbrosio, DeAmbrosio, Ambrosia, Ambrosio, D'Ambrosio)
He was born Sept 16 1885 in Foggia Italy - possibly Sept 8
Arrived here in 1904
Married Concetta "Sara" Benetto (she changed her name I guess to Sara)
They were married in Chicago in 1909
They had 5 children:
William whom they called "Vido"
Margaret/Magaret/Margarite
Jennie
Anna
Philomeno

If anyone has any insight I would love to hear it so we can continue.