The 1930 states Giovanni Spada immigrated in 1910.
This could be him on the this passenger ship record. Info seems to match what is known.
He is on line 17, Images 761 & 762.
Passenger list: https://www.familysearch.org/ark:/61903/1:1:JJX4-82F
Having hard time reading the writing, but the transcription states his arrival contact is a cousin Ferddo Melone.
I do see a Ferdinando Melone who would be the right age to be his cousin living in Camden, New Jersey in 1910.
1910 census: https://www.familysearch.org/ark:/61903/1:1:MKTH-M3B