Personal correspondence covering Society for the Promotion of Nature Reserves business, 1947-c.1953, and various other conservation matters.

Personal correspondence, 1962, 1967. There is also correspondence, 1990, concerning the Environmental Protection Bill (Nicholson is not one of the correspondents) and a letter to Nicholson from Shackleton's widow, 1994, in reply to his letter of condolence.

Correspondence chiefly regarding memorial service for Shaw, 1995, with typescript of address delivered by Nicholson; typescript obituary by Nicholson (publication unknown). There is no correspondence between Nicholson and Shaw.

Nicholson's correspondence with various civil servants regarding matters concerning his employment at the Nature Conservancy, chiefly during the period of his transfer from the Lord President of the Council's Office to the Conservancy (1952). Morrison is not one of the correspondents. One unrelated letter is dated 1951.

Typescript of letter by Nicholson to The Times, and cutting of printed version, regarding its obituary of Morrison.

Historical material relating to Morrison collected by Nicholson and correspondence etc regarding his assistance with later enquiries and research concerning Morrison's career, 1946-1997. Included are 5 photographs, 1946-1951, annotated on the back in Nicholson's hand: 4 feature Nicholson, of these 2 feature Morrison. All but one of the photographs were taken in connection with the Festival of Britain.

Letter and postcard from Boyd to Nicholson, 1965, 1992; brief correspondence following his death in 1998.

Personal correspondence covering various conservation matters.

Personal correspondence.