B.V.: Bleddyn Vardd, fl. 1250–90.
C.: Cynddelw (Powys), fl. 1150–1200.
Ca.: Casnodyn, c. 1320.
Ceiriog: John Ceiriog Hughes, 1832–87.
D.B.: Dafydd Benfras, fl. 1200–50.
D.E.: Dafydd ab Edmwnd (Flintsh.), fl. 1450–80.
D.G.: Dafydd ap Gwilym (N. Card.), fl. 1350–80; ref. to Barddoniaeth Dafydd ab Gwilym…Llundain, 1789.
D.I.D. : Deio ab Ieuan Du (Card.), c. 1480.
D.Ỻ.: Dafydd Llwyd ap Llywelyn ap Gruffudd, c. 1480.
D.N.: Dafydd Nanmor (Beddgelert), c. 1460.
Dr. M.: William Morgan (C’vonshire), 1541–1604; Bp. of St. Asaph, translator of the Bible, 1588.
Dr. P.: Richard Parry (Ruthin), 1560–1623; Bp. of St. Asaph, editor of the revised Bible, 1620. Internal and other evidence points to the version being largely if not mainly by Dr. John Davies.
D.W.: Dewi Wyn o Eifion = Dafydd Owen (Llanystumdwy), 1784–1841; ref. to Blodau Arfon…Caerlleon (Chester), 1842.
D. y C.: Dafydd y Coed, c. 1330.
E.F.: Eben Fardd = Ebenezer Thomas (S. C’von), 1802–63; ref. to Gweithiau Barddonol Eben Fardd. [Bangor, n.d.]
E.M.: Edward Morris (Cerrig y Drudion), d. 1689; ref. to Edward Morris…ei Achau.. etc. Liverpool 1902.
E.P.: Edmwnd Prys, Archdeacon of Merioneth, 1541–1623; ref. to Edmwnd Prys…Gan. T. R. Roberts (Asaph). Caernarfon 1899. ps. refers to his metrical version of the Psalms.
E.S.: Elidir Sais, fl. 1160–1220.
E.U.: Edward ab Urien, c. 1610.
G.: Gwalchmai (Anglesey), fl. 1150–90.
G.B.: Gwynfardd Brycheinog (Brec.), c. 1170.
G.C.: Gruffudd ap Cynfrig Goch, p. 119, error in p 64/122 r. for Rhys ap Cynfrig Goch p 97/244 (“nai.. i I.G.” ?); p 100/408; Ỻ 133/129 r. (? = R.G.G.).
G.D.A.: Gwilym Ddu o Arfon, c. 1300.
G Gl.: Guto’r Glyn (Denb.), fl. 1450–80.
G.Gr.: Gruffudd Gryg (Anglesey), c. 1370.
G.Gw.: Gruffudd ap Gwrgeneu, c. 1200.
G.H.: Gruffudd Hiraethog (N. Denb.), fl. 1520–60.
G.I.H.: Gwilym ab Ieuan Hen, c. 1460.
G.I.Ỻ.F.: Gruffudd ab Ieuan ap Llywelyn Fychan (Denb.), fl. 1500–25; selected poems ed. by J. C. Morrice, Bangor Welsh MSS. Soc. 1910.
G.J.: Griffith Jones, Rector of Llanddowror, 1684–1761.
G.M.D.: Gruffudd ap Maredudd ap Dafydd, c. 1320–50.
Gr.O.: Goronwy Owen (Anglesey), 1723–69; ref. to Gwaith y Parch. Goronwy Owen…Llanrwst, 1860. (In R. Jones’s edn., 1876, the text is tampered with.)
G.S.: Guto ap Siancyn y Glyn = G.Gl.