Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Evans, Vincent, Sir, 1851-1934, 5 canlyniadau
- Ellis, Thomas Edward, 1859-1899, 2 canlyniadau
- Edwards, Owen M. (Owen Morgan), 1858-1920, 2 canlyniadau
- Hughes, John Ceiriog, 1832-1887, 1 canlyniadau
- Morris-Jones, John, 1864-1929, 1 canlyniadau
- Palmer, Alfred Neobard, 1 canlyniadau
- Ballinger, John, 1860-1933., 1 canlyniadau
- Evans, Thomas, 1 canlyniadau
- Eifion Wyn, 1867-1926, 1 canlyniadau
- North Wales Quarrymen's Union., 1 canlyniadau
- Pob un
- Penrhyn Quarry (Wales), 1 canlyniadau
- Strikes and lockouts -- Wales -- Bethesda., 1 canlyniadau
- Slate industry -- Wales -- Bethesda., 1 canlyniadau
- Penrhyn Quarry Dispute., 1 canlyniadau
- Labor disputes -- Wales -- Bethesda., 1 canlyniadau
- Quarries and Quarrying -- Wales -- Bethesda., 1 canlyniadau
- Temperance -- Wales -- Poetry., 1 canlyniadau
- Penrhyn Quarry (Wales) -- Accidents., 1 canlyniadau
