Llythyrau oddi wrth Iorwerth Peate, D. Rhys Phillips, Edgar Phillips, Mati Rees, T. Ifor Rees, Keidrych Rhys, Brinley Richards, Melville Richards, D. O. Roberts, Elwyn Roberts, Gomer M. Roberts, Glyn Simon a J. Beverley Smith, 1937-1964.
Phillips, D. Rhys (David Rhys), 1862-1952
Llythyrau R (Robert-Robert, K.)
Llythyrau, [1936]-1969. Ymhlith y gohebwyr mae Hywel ap Robert (2), D. O. Roberts (4), Elwyn Roberts (21) a Gomer M. Roberts (7).
Hywel ap Robert, b. 1923
Ymhlith y gohebwyr amlycaf mae T. Ifor Rees (7), Prosser Rhys, Keidrych Rhys, Brinley Richards, Melville Richards (2), Tom Richards (10), Gomer M. Roberts (5), Kate Roberts (6), Eurys Rowlands (6), R. J. Rowlands ('Meuryn', 3), T. Shankland (2), Alf Sommerfelt.
Rhan oPapurau Ambrose Bebb
Mae'r ffeil hon yn cynnwys llythyrau oddi wrth Prosser Rhys (2), Gomer M. Roberts (1), a Sarnicol (1).