Ymhlith y gohebwyr amlycaf mae R. Williams Parry (65, gan gynnwys teipysgrif o'r soned 'Y Dieithryn (John Saunders Lewis)', ac un cerdyn post, 1951, at Saunders Lewis), Syr Thomas Parry (25), Syr T.H. Parry-Williams (7), Ffransis G. Payne (20), Iorwerth C. Peate (17), a W. W. Price (7, un at R. T. Jenkins).
Part of Papurau D. Tecwyn Lloyd,
Ymhlith y gohebwyr mae Thomas Parry (11); Iorwerth Peate (3); Kate Roberts (3); J. E. Caerwyn Williams (1); John Rowlands (1); John Stoddart (2); Gwyn Thomas (3); Ned Thomas (1); R. S. Thomas (2); Urien Wiliam (1); R. Bryn Williams (1); a Rhydwen Williams (2).
Parry, Thomas, 1904-1985
Part of Papurau D. Tecwyn Lloyd,
Ymhlith y gohebwyr mae E. Tegla Davies (1); G. G. Evans (1); Meredydd Evans (2); Maurice [James] (1); Thomas Jones (1); 'Llwyd o'r Bryn' (1); Iorwerth Peate (1); Melville Richards (1); Nansi Richards (1); a Goronwy Roberts (2).
Davies, E. Tegla (Edward Tegla), 1880-1967.
Part of Papurau D. Tecwyn Lloyd,
Ymhlith y gohebwyr mae Thomas Parry (12); Iorwerth Peate (8); Caradog Prichard (4); Eigra Lewis Roberts (1); Kate Roberts (20); Wyn Roberts (1); John Rowlands (1); Ben Bowen Thomas (4); Gwyn Thomas (3); Ned Thomas (2); ac R. S. Thomas (1).
Parry, Thomas, 1904-1985
Part of Papurau D. Tecwyn Lloyd,
Ymhlith y gohebwyr mae T. E. Nicholas (1); Iorwerth Peate (7); Thomas Parry (2), Kate Roberts (1); a Keidrych Rhys (1).
Nicholas, T. E. (Thomas Evan)
Llythyrau, 1918-1969. Ymhlith y gohebwyr mae Alun Page (5), Dafydd [David] Hughes Parry (5), Gruffudd Parry (1), Tom Parry (9), Ffransis Payne (3), Iorwerth Peate (29), Llew Phillips (1), 'Dick' [Dr Richard Phillips] (14), y Barnwr Dewi [Watkin] Powell (2) a Caradog [Prichard] (2).
Page, Alun,