Metal printing plate used to print the cover of a 1919 issue of The Australian at Weymouth, with accompanying provenance statement; a single bound volume of 1918 and 1919 issues of The Australian at Weymouth; three ink stamps from German New Guinea. Sample imprints of two of these stamps are located in Series C, Subseries 1, File 2.

Objects collected in the course of research for the books Masked Eden and Lieutenant Martin's Letters.

Assorted notes, newspaper cuttings and other documents relating to the publication and launch of Masked Eden.

Assorted newspaper cuttings and articles about Heinrich Wahlen and other topics relating to colonial life in New Guinea. The file also contains letters from Stan McCosker to The Bulletin.

Newspaper cuttings of articles about the German plantation owner and trader Heinrich Rudolph Wahlen and the house he built on Maron Island in the Hermit Group of islands of New Guinea. The file includes a photographic print of the house.

Letters by Stan McCosker to Walford King, mostly relating to re-establishing the Matala Plantation after the war. The file also contains two letters from the Department of External Territories to Marjorie McCosker granting her permission to return to the Territory of Papua New Guinea.

Letters by Stan McCosker while on military service in New Guinea and North Queensland.

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

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.

Letters from Stan to Marjorie McCosker in 1941 after she was evacuated from New Guinea to Australia, a letter from Stan McCosker to Walford King, and a letter from Marjorie to Francie King. The file also contains instructions dated 30 May 1940 from the Commanding Officer of the New Guinea Volunteer Rifles listing the personnel to escort enemy internees from Rabaul to Sydney. Stan McCosker is named as one of the seven members of the escort.