- NLW MS 8275A
- Ffeil
- 1857-1860
'Y Fronfraith, sef caniadau ar wahanol destynau gan John Lewis (Ioan ap L.) Llanrhystyd' - a collection of lyrics and other poems by John Lewis, 1857-1860.
'Y Fronfraith, sef caniadau ar wahanol destynau gan John Lewis (Ioan ap L.) Llanrhystyd' - a collection of lyrics and other poems by John Lewis, 1857-1860.