The Joseph Caruso as a brother-in-law supports Maria's maiden name of Caruso.
On the (payment) site Ancestry.com there are the two military enlistment for the WW1 and WW2 for Joseph (Giuseppe) Caruso:
World War I Draft Registration Cards, 1917-1918
about Joseph Caruso
Name: Joseph Caruso
City: Orange
County: Essex
State: New Jersey
Birth Date: 16 Oct 1884 (place of birth Italy)
Race: White
FHL Roll Number: 1754353
DraftBoard: 0
nearest relative: his father Alessandro Caruso in Alberona
U.S. World War II Draft Registration Cards, 1942
about Joseph Caruso
Name: Joseph Caruso
Birth Date: 16 Oct 1884
Birth Place: Alberona, Italy
Residence: Essex, New Jersey
Race: White
Address: 20 Cutler street, Newark, NJ
Now you know also Maria Caruso's father's name
Laura
