Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Williams-Wynn, Watkin, 1820-1885, 2 canlyniadau
- Wynn, Charles Watkin Williams, 1775-1850, 2 canlyniadau
- Aberdare, Henry Austin Bruce, Baron, 1815-1895, 1 canlyniadau
- Davies, Walter, 1761-1849., 1 canlyniadau
- Llanover, Augusta Hall, 1802-1896., 1 canlyniadau
- Jenkins, John, 1770-1829., 1 canlyniadau
- Graham, James, Sir, 1792-1861, 1 canlyniadau
- Griffith, John, 1821-1877, 1 canlyniadau
- Hwfa Môn, 1823-1905, 1 canlyniadau
- Gladstone, W. E. (William Ewart), 1809-1898, 1 canlyniadau
- Pob un
- Temperance., 1 canlyniadau
- Pollution prevention -- History -- 19th century., 1 canlyniadau
- Water -- Pollution -- History -- 19th century., 1 canlyniadau
- Schools -- Wales -- Conwy., 1 canlyniadau
- Education -- Wales -- Conwy., 1 canlyniadau
- Sewerage -- England -- Manchester., 1 canlyniadau
- Public health -- England -- Manchester., 1 canlyniadau
- Postal service -- Wales -- Llanbrynmair., 1 canlyniadau
- Charity-schools -- England -- Ashford (Middlesex), 1 canlyniadau
- Welsh -- England -- Ashford (Middlesex), 1 canlyniadau
