Handwritten diary with daily entries relating to activity at Stan McCosker's gold mine, 50 miles (80km) south of Rabaul. Sections towards the back of the journal contain lists of labourers and what appear to be accounts of payments made to them. There are also lists of tools and supplies. The journal encloses an unattached letter from 'Pop' to 'Bin', dated 31 December 1955 and 3 January 1956.

Statements, personal accounts, copies of military records, memoirs and newpaper cuttings relating to the Japanese invasion and occupation of Rabaul.

Letters to Anne McCosker from John Leeuwin-Clark and Pat Leeuwin-Clark.

Photographic prints and postcards showing people, plantation life and scenery in the Australian Territory of New Guinea. Locations include Matala Plantation and Rabaul. Many of the photographs feature local people.

Letters to Anne McCosker from Dr A.M. (Allan) Healy.

Scrapbook of articles by Stan McCosker as printed in The Bulletin. The articles contain descriptions and accounts of life in New Britain. At the back of the scrapbook there are four loose newspaper cuttings from the 1960s and a typed article, 'The Epistle of Father Jerome to the Kiaps'.

Documents relating to the Japanese military invasion of New Britain. Includes a letter from Stan to Marjorie McCosker dated 17 December 1941; correspondence between Marjorie and Francie King; a statement by A.J. Gaskin, S. McCosker and T.H. Targett concerning the military and civilian administration of Rabaul up to 22 January 1942; a copy of a statement by Mr McGowan about the Japanese invasion; a handwritten draft of a short story titled 'Escape' by Robin McCosker; and two newspaper cuttings.

One notebook and three sets of annotated typed drafts of Potter's Clay.

Photographic prints of people, plantation life and scenery in the Australian Territory of New Guinea. Locations include Matala Plantation, Kolopo and Rugenhafen. Some of the photographs feature members of the McCosker family and their associates. The album also contains a sequence of photographic negatives attributed to Walford King which show Chinese and Japanese fishing boats and cargo ships.

Letters to Anne McCosker from David Behrens.