It was Cuggiorno or Cuggiono in the Lombardy region. Merlo is like the most common name there. And Oldani is up there too.
I think Paul's dad's name was "Charles" according to his marriage certificate to his 2nd wife Mary Bazzetta in 1926.
Paul Peter died April 1st, 1946 in Windsor (Essex).
First wife's name maiden name Rose (Oldani) who died in 1923 in "Essex" / Windsor.
May have come into the country through Quebec.