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- Roberts, J. Bryn (John Bryn), 1847-1931, 2 results
- Williams, William John, 2 results
- Dinorwic Quarry (Wales) -- Records and correspondence, 2 results
- Davies, W. A., Llanberis, 2 results
- Davies, Richard, 1818-1896, 2 results
- Dewes, Henry, 1817-1910, 2 results
- Griffiths, Griffith, Llangybi, Caernarvonshire, 2 results
- Jones, Owen, Cae Cerrig, Ebenezer, 2 results
- Rathbone, William, 1819-1902, 2 results
- Robinson, John, Nantlle, 2 results
