The collection contains material relating to the Darbishire family, the Penmaenmawr and Welsh Granite Company, Trefor Memorial Village Hall and Institute and the recreation club for ex servicemen.
The family papers consist mainly of photographs and newspaper cuttings. The quarry papers are mainly minutes of directors' meetings and miscellaneous financial and administrative items. In particular, there is an emphasis within the accumulation on material that relates to quarrying activity during wartime including reports, originating from Captain C.S. Darbishire regarding operation of Haut Banc quarry in France during the First World War. There is also material relating to the Trefor Comrades Recreation Club and the setting up in 1918 of the Trefor Village Hall and Institute.