Sources

The list of pre-1923 works is taken from P. Grierson, "Bibliography of Professor C. W. Previté-Orton, Litt.D., F.B.A.", Cambridge Historical Journal, vol. 9 (1947), pp. 118–119.
R. B. Dobson, "Orton, Charles William Previté-", Oxford Dictionary of National Biography (online edition, Oxford University Press.