1780 - 1879Person Name: David George Jones. (1780-1879)Author (stanza 1) of "Bydd myrdd o ryfeddodau (Unnumbered host of wonders)" in Welsh and English Hymns and Anthems
1720 - 1794Person Name: D. W.Author (stanza 3) of "Bydd myrdd o ryfeddodau (Ten thousand trails of wonder)" in Mawl a chân = praise and song Also Dafydd William.