Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Vaughan, Arthur Owen., 1 canlyniadau
- Ellis, Thomas Edward, 1859-1899, 1 canlyniadau
- Evans, George Eyre, 1857-1939, 1 canlyniadau
- Powel, Thomas, 1845-1922., 1 canlyniadau
- Evans, Vincent, Sir, 1851-1934, 1 canlyniadau
- Kenyon, Lloyd Tyrell, 1864-1927, 1 canlyniadau
- North Wales Quarrymen's Union., 1 canlyniadau
- Anwyl, E. (Edward), 1866-1914., 1 canlyniadau
- Hughes, H. Harold (Henry Harold), 1864-1940., 1 canlyniadau
- Davies, Mary, 1855-1930, 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