Gems of Welsh Melody. A Selection of popular Welsh Songs, with English and Welsh Words; Specimens of Pennillion Singing, After the manner of North Wales; and Welsh National Airs, ancient and modern; set in a familiar Manner for the Pianoforte or Harp, With Symphonies and Accompaniments, by John Owen (Owain Alaw, Pencerdd). First Series. Third Edition. Ruthin, S. 18f. u. Inhaltsverzeichnis („Contents“) [Vorwort von 1860]; Vgl. auch: dasselbe, 1st Series, 2nd Edition, Ruthin (Google)
