Files relating to the creation of National Parks, and the Inter-departmental National Parks Committee, of which Addison was Chairman, 1929-1944, (fols. 1-126) 'National Parks Committee', papers on public access to common lands, the Forestry Commission, the 1930 Access to Mountains Act, and parks in the Forest of Dean, Lake District, Snowdonia, Peak District, Cornish Coast, and Pembrokeshire, 1929-1930, with (fols. 83-126) notes on national park legislation in the USA, Canada, New Zealand, and Sweden, n.d.; (fols. 127-270) 'National Parks Committee', minutes of meetings, with (fols. 198-222) correspondence on the National Trust, (fols. 223-229) Forestry Commission report, 1935, and (fols. 230-270) papers on the creation of a national park in the Cairngorms, and c (fols. 271-290) correspondence with the Standing Committee on National Parks, part of the Councils for the Preservation of Rural England and Wales, Apr. 1939, with (fols. 276-285) notes on a proposed Paramount film on agriculture, n.d., and (fols. 287-290) notes by Sir Norman Birkett for the Standing Committee on National Parks, Dec. 1944.