Literary notes and drafts of Anne McCosker's poems and stories, personal correspondence, research papers and correspondence relating to the history of Australian New Guinea before and after World War Two, World War One letters from Lieutenant F.W.S. (Fred) Martin, and photographs relating to Anne McCosker's family history in Australian New Guinea. Many of the letters, research documents and photographs relating to New Guinea were used as source material for Anne McCosker's book Masked Eden: A History of the Australians in New Guinea.

Notebooks containing handwritten drafts of poems published in Camp Fires.

Notebooks containing handwritten drafts of poems published in Potter's Clay.

Personal correspondence of Anne McCosker. Includes letters received and copies of some letters sent. Most of the correspondents are friends, family members and New Guinea associates of her family. Some of the letters contain first-hand information about events and people in the history of Australian New Guinea.

Undated miscellaneous personal correspondence, notes and emphemera of Anne McCosker. Most of the correspondence and notes deal with Anne McCosker's book Masked Eden and debates about aspects of the history of Australian New Guinea.

Correspondence with Hank Nelson.

Letters from a folder labelled 'letters to Whitey', addressed to either Whitey or Auntie Spesh.

Letters from Walford King in 1940 during his war service in Palestine and a photograph of King in AIF uniform in Jerusalem in 1940. The folder also contains a letter dated 25 December 1924 from 'Joe' to Telong, identified as G.T. Heathcote.

A licence to drive a motor vehicle, issued by the Territory of Papua New Guinea to Stanley McCosker; a certificate issued by the Federal Institute of Accountants to Marjorie Martin certifying her as a Provisional Associate of the Institute; a sheet bearing the imprints of two ink stamps: the stamp of the Deutsche Kolonialgesellschaft Abteiling Bismarck Archipel, and the stamp of the New Guinea Compagnie. The original ink stamps used can be found in Series E, File 1.

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