Williams, D. J. (David John), 1885-1970, Griffiths, J. Gwyn (John Gwyn), 1911-2004, 1970

Griffiths, J. Gwyn (John Gwyn), 1911-2004, 1983

Academi Gymreig, Griffiths, J. Gwyn (John Gwyn), 1911-2004, 1989

Bosse-Griffiths, Kate, 1910-1998, Griffiths, J. Gwyn (John Gwyn), 1911-2004, Griffiths, J. Gwyn, 2004

Aristotle, 384-322 B.C., Griffiths, J. Gwyn (John Gwyn), 1911-2004, Griffiths, J. Gwyn (John Gwyn), 1911-, 1978

Griffiths, J. Gwyn (John Gwyn), 1911-2004, 1969

Griffiths, J. Gwyn (John Gwyn), 1911-2004, 1970

Lewis, Saunders, Davies, Pennar, Jones, D. Gwenallt (David Gwenallt), 1899-1968, Gwenallt, 1899-1968, Evans, D. Emrys, Griffiths, J. Gwyn (John Gwyn), 1911-2004, Griffiths, J Gwyn (Casglwyd Gan), 1962

Plutarch, Griffiths, J. Gwyn (John Gwyn), 1911-2004, 1970

Griffiths, J. Gwyn (John Gwyn), 1911-2004, 1962

Aristotelis, Griffiths, J Gwyn, 2001

Griffiths, J Gwyn,

Griffiths, J Gwyn,

Peate, Iorwerth C, Jones, J W, Murry, John Middleton, Griffiths, J Gwyn, Jones, E K, Davies, Ithel, Jones, R J, Jones, Gwilym R, Davies, George M Ll, Lloyd, D Myrddin, Bosse-Griffiths, Kate, Davies Aberpennar,

Gruffudd, Heini (Gol.), Griffiths, J Gwyn,

Williams, Glanmor, Bosse-Griffiths, Kate, 1910-1998, Griffiths, J Gwyn, Williams, J. E. Caerwyn (John Ellis Caerwyn), 1912-1999, Roberts, Brynley, 1999