George Grove Blackwell
Major shareholder of Welsh Manganese Co. Ltd
1889 leasor Llyn Eiddew Mawr (with Ellis Pritchard)
Crown Grants:
| 1872–1877 | eight grants of lease (one with Richard Dormer) for clay in Caerhun and Gyffin parishes, Carenarfonshire | [PRO LRRO: 16/48, 51, 55, 58, 60] |
| 1889 | grant of lease for minerals in Llanfihangel y Traethau parish, Merioneth | [PRO LRRO: 16/87] |
| 1889–1891 | six grants of memorandum of renewal for minerals (four with Ellis Prichard) in Llanbedr, Llandanwg and Llanfihangel y Traethau parishes, Merioneth | [PRO LRRO: 16/88, 90, 92] |
see also G G Blackwell, Sons & Co.