The file comprises card index entries covering Condry's own writing, photographs, bibliographies and other literary sources, birds, fish, animals, insects, plants, trees, habitats, climate, important figures such as George Borrow and Thoreau, and places of interest, with a section specifically about Ynys-hir. Some notes are quite detailed, accompanied by relevant cuttings and correspondence, which includes letters from Prof. E. G. Bowen, 1982, regarding St Beuno and Bardsey, Arthur Chater, 1963, 1992, on history books of Welsh interest and a plant species, Pip Miles on entomology, 1958, 1975, Derek [Ratcliffe], 1981, mainly concerning peregrine falcons, H. R. H. ('Taff') Vaughan, 1976-1977, on the history of local industries, and Irene ('Benjamin') Vaughan (1976), on the wild service tree.

The file comprises letters from correspondents who include Morrey Salmon, 1977, regarding a complimentary copy of a booklet sent to Condry, news of red kites and peregrines, and a meeting of the Kite Committee; H[arold Wright], (postmark 1947), concerning curlews; and Irene ('Benjamin') Vaughan, 1981, relating humorous anecdotes