found: Kelly, H. A. Chaucer and the cult of Saint Valentine, c1986:t.p. (Saint Valentine)
found: LC data base, 4-18-87(hdg.: Valentine, Saint)
found: Holweck, F. G. Bio. dic. of the saints, 1924(Valentine, martyr; Roman priest & physician; beheaded 269; maybe identical with Valentine, Bishop of Terni who was beheaded near Rome ca. 273)
found: Book of saints, 1966(Valentine, Saint, martyr; d. 269; priest & physician in Rome; Valentine, Saint, Bishop, martyr; d. ca. 269; seem to be the same person)
found: New Catholic encyc., 1981(Valentine, Saint; 2 martyrs behead on Flaminian Way; Valentine of Rome d. ca. 269; Valentine, Bishop of Terni; dispute if same person)
found: Il culto di San Valentino nel Veneto, c2009.