Gregory Thaumaturgus ; Dionysius the Great ; Julius Africanus ; Anatolius ; and minor writers, Methodius, Arnobius, 1994 p. 158 (The epistle of Theonas, bishop of Alexandria, to Lucianus, the chief chamberlain)
New Catholic Encyclopedia, 2nd ed. v. 13, p. 927 (Theonas of Alexandria, St., d. Dec. 28, 300)