I know this won't help on the tracing - but - you do have this document, do you? Adoptive parents Francesco Marino and Nicolina Fisico.

Saw this posting:
"Ontario, Canada Marriages, 1801-1926
about Pietro Mottola
Name: Pietro Mottola
Birth Place: Italy
Age: 21
Estimated birth year: abt 1901
Father Name: Adopted By Francesco Francis Marine Nicolina Fisies Mottola
Mother Name: Mottola
Spouse Name: Raffaela Mbbrions
Spouse's Age: 16 ...