(a)1841-69. Letters mainly between John Higgins (father of H.B. Higgins) and his wife Annie ("Nanny") concerning John's training and work as a Wesleyan minister travelling on circuit in Northern Ireland; letters from relations concerning family and business affairs; letters from young Henry and his brothers at boarding school Unit ID: 741-2389
(a)1854-1900. Correspondence with family and friends (some in Ireland) concerning schooling and, after 1870, education and professional activities; letters from A. B. Piddington, John Quick, W. A. Holman, John Redmond and others concerning Federation and other matters, including Irish Home Rule Unit ID: 1-75
(b)1870-93. Correspondence between John Higgins, his wife and children after their migration to Victoria in 1870, concerning principally the education and employment of the children, business affairs, and John Higgins' work as a Wesleyan minister on country circuits in Victoria and Western Australia Unit ID: 2390-2521
(b)1901-05. Correspondence, mainly of a political and legal nature, with W. Baldwin Spencer, T. Tunnecliffe, G.S. Kingston, David Syme and others, concerning Higgins' selection to and work in the first two Federal ministries Unit ID: 76-119
(c)1894-1920. Letters of Nettie Higgins (Palmer), niece of H. B. Higgins, to her mother, covering the period of her schooling and University training, and her first trip to Europe (1894-1910). There are also letters of Mervyn Higgins, son of H. B. Higgins, to his parents, from England while in Oxford (1914-16) and on active service in France and Egypt, where he was killed in action at the end of 1916 Unit ID: 2522-3015
(c)1906-22. Correspondence, mainly of a political and legal nature, with many people including W. H. Irvine, Archbishops Carr and Moran, B. R. Wise, Littleton Groom, S. W. Griffith and R. R. Garran; letters from the editor of Harvard Law Review concerning Higgins' contributions; correspondence with Sir Charles Powers 1917-23 (Higgins' successor as President of the Federal Court of Conciliation and Arbitration); letters from John Redmond, the United Irish League, etc. concerning Irish Home Rule; family correspondence with Nettie Palmer (nee Higgins) and others Unit ID: 120-481
(d)1923-29. Correspondence with J. G. Latham, E. D. Simon, N. A. Watt, F. Gavan Duffy and others concerning legal matters and other interests; correspondence with the Irish Statesman relating to Higgins' interest in furthering studies of Irish literature; condolence letters to Mrs. Higgins on the death of H. B. Higgins; undated letters Unit ID: 482-740