Antonio Meucci
13 April 1808 — 18 October 1889
Antonio Santi Giuseppe Meucci was an Italian inventor and an associate of Giuseppe Garibaldi, a major political figure in the history of Italy. Meucci is best known for developing a voice-communication apparatus that several sources credit as the first telephone.
A memorial on Digital Cemetery, an endless map you can explore. This grave stands at coordinates 29, 54.