pt. I. Welsh manuscripts at Jesus college, Oxford; Free library, Cardiff: Havod; Wrexham; Llanwrin; Merthyr; Aberdâr. pt. II; Welsh manuscripts at Plas Llan Stephan, Carmathenshire, the property of Sir John Williams, bart. pt. III. Panton; Cwrtmawr. pt. IV. The British museum
Great Britain. Royal Commission on Historical Manuscripts
Jan 1902 · H.M. Stationery Office