Marco was born about 1830 in Rocca Pia, L'Aquila, Abruzzo, Italy, the son of Domenico Letterio and Mariangela Acquafonnata.
Marco Letterio (c1830-?)
Domenico Letterio (c1795-?)
Vincenzo Letterio (c1769-?)
Annantonia Calabrese (c1766-1830)
Ascenzo Calabrese (c1735-?)
Brigida Fidei (c1735-?)
Mariangela Acquafonnata (c1797-?)