Thaddeus Kosciusko and Kazimierz Pulaski were from Poland, Johan DeKalb was from Bavaria, Friedrich Wilhelm von Steuben was from Prussia, and Louis Lebeque DuPortail, like Lafayette, was from France.
Yes! Trains started to be built in 1839 to connect the royal palace of Naples to the seaside. More were built in 1861 to connect from the Alps to Sicily.