Giuseppe arrived at Ellis Island June 24, 1910 on the Ship "Tomaso di Savoia" with his sister Madelena. The Ellis Island record shown below (second image, lines 16 & 17)  indicates that their  father, Pietro Giamportone,  was living  at 75 Main Street, Brooklyn.

It looks like Giuseppe's age is listed as 19 (first image, column 4), he was actually 15; Madalena's age is correct. 

To see the full manifest visit http://www.ellisislandrecords.org/