Llythyrau W (Walters-Williams, D.)
Llythyrau, 1918-[1965]. Ymhlith y gohebwyr mae Syr Percy E. Watkins (2), Tudor Watkins, AS (2), Harri Webb (3), Syr Wynn P. Wheldon (3), Alun Llywelyn-Williams (3), y Fonesig Amy Parry-Williams (1) a David Williams (2).
Watkins, Percy E. (Percy Emerson), Sir, 1871-1946
Ymhlith y gohebwyr amlycaf mae Lewis Valentine (cerdyn Nadolig), Morgan Watkin (4), Harri Webb (2), A. H. Williams (3), D. J. Williams, Abergwaun (16), David Williams (9), Ifor Williams (10), Iolo A. Williams (18, a'i deulu (3), ac un oddi wrth G. J. Williams, 1962, at Elinor Williams), J. E. Caerwyn Williams, J. Lloyd Williams, Morris Williams (2), Stephen J. Williams (4).
Llythyrau a chardiau amrywiol, 1961, gan gynnwys rhai oddi wrth Dilwyn John (3); Thomas Parry (2); Vincent H. Phillips; David Williams (copy); Cynan; Stuart F. Sanderson (3); Ffransis Payne (2); Griffith John Williams; H. Meurig Evans; Trefor M. Owen; Tony Lucas (2); Glanmor Williams; Iolo A. Williams; W. Leslie Richards; Alun Oldfield-Davies; a T. E. Nicholas. Anfonwyd rhai ohonynt at Nansi Peate, ac mae nifer yn cyfeirio at lawdriniaeth Iorwerth Peate.