Six notebooks containing ideas and notes for stories and plays, three greeting cards, and two typed manuscripts of a short story titled 'The Favourite Uncle'.

Two ledgers detailing expenses, incomes and assets of the Matala Plantation from July 1954 to June 1955.

Three maps of New Britain. The earliest map, dated 1927, shows New Britain in relation to surrounding islands and the New Guinea mainland. It includes an index of properties and places, and shows plantations and trading stations. The other two maps were issued by the U.S. Army in 1943 and show sections of New Britain. An accompanying note by Anne McCosker states the maps were used by Stan McCosker during the war years.

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

Handwritten letters to family from Frederick (Fred) William Scott Martin during his war service in World War One. The correspondence in this file begins while Martin was in the trenches at the Western Front. His final letter is dated 31 August 1917. Martin was killed in action in Belgium on 20 September 1917. The final documents in this folder are an article about Martin published in The Humpybong Halcyon newspaper on 20 October 1917, a letter from the Queensland Department of Public Instruction to Martin's father, dated 6 December 1917, and a copy of a Commonwealth record detailing the actions that led to Martin being awarded the Military Medal.

Handwritten letters to family from Frederick (Fred) William Scott Martin during his war service in World War One. The correspondence in this file begins while Martin was convalescing in Weymouth and ends with postcards sent from France.

Handwritten letters to family from Frederick (Fred) William Scott Martin during his war service in World War One. The letters in this file begin while Martin was in training in Australia and cover his service at Gallipoli and his transfer to the United Kingdom after falling ill.

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.

Letters from Stan McCosker to the Kokopo Sports Club relating to the auditing of the club's accounts.