The Roman Martyrology. Transl. by the Archbishop of Baltimore. Last Edition, According to the Copy Printed at Rome in 1914. Revised Edition, with the Imprimatur of His Eminence Cardinal Gibbons. Baltimore: John Murphy Company, 1916. pp. 53-54.
Rev. Sabine Baring-Gould (M.A.). "S. Olcan, B. of Derkan. (About 500.)." In: The Lives of the Saints. Volume the Second: February. London: John C. Nimmo, 1897. pp. 349-350.
Rev. Sabine Baring-Gould (M.A.). "S. Eleutherius of Tournai, B. M. (A.D. 531.)." In: The Lives of the Saints. Volume the Second: February. London: John C. Nimmo, 1897. pp. 350-353.
Rev. Sabine Baring-Gould (M.A.). "S. Mildred, V. Abss. (End of 7th Cent.)." In: The Lives of the Saints. Volume the Second: February. London: John C. Nimmo, 1897. p. 354.
Rev. Sabine Baring-Gould (M.A.). "S. Eucher, B. of Orleans. (A.D. 743.)." In: The Lives of the Saints. Volume the Second: February. London: John C. Nimmo, 1897. p. 355.
