The records consist of correspondence, diaries, notebooks, legal documents, way bills, literary manuscripts (prose and poetry), published work, a scrapbook and papers of John Martley and Arthur Hugh John Martley; diary and notebook of Robert Adams Hopkins; letterbook of William George Cox Manson and photographs (HP79331 - HP79339).

The series contains personal correspondence; letters to editors; essays, articles and lectures; poems and songs, most of which reflect Harris' socialist viewpoint.

For ease of retrieval, since some essays duplicate letters to editors, only those items which are specifically addressed to an editor are considered letters to editors; these are filed in chronological order. Those items not specifically addressed to an editor are considered essays and are arranged alphabetically by title.