sentences:  The companies listed as having worked the mine were, Marty Dennis and Co., British Barytes Co., Durrus Barytes Co., Mount Gabriel Barytes and Umber Co., Irish Barytes and Umber Co., Dereenlomane, Barytes Mines Ltd., Dunmanus Barytes Mines Ltd.The Moynihan family operated a water mill fed by a sluice from the Durrus River, starting at the Creamery and continuing to the Mill.It had extensive use during the Second World War.