The collection mainly consists of papers (correspondence, memoranda, telegrams, despatches, etc.) relating to Ingrams' administrative service in Mauritius, Gibraltar and Africa. There are also some papers relating to Malaya and the West Indies; press cuttings about the death of Queen Salote in Tonga in 1965; articles collected by Ingrams about the West Indies, India, Ceylon, Indonesia, Vietnam, Malaya, the Philippines and Korea; and a manuscript narrative about the loss of the East India Company's ship "Cabalva" in 1818.
Also included in the collection are letters and documents, 1863-1915, of Sir William Newton which relate to his time in Mauritius. There are letters to Newton from Colonial Secretaries of Mauritius (Sir Graham Bower, Sir Hubert Jerningham and Sir Charles King-Harman) and from Governors of Mauritius (Sir Cavendish Boyle and Sir Charles Bruce). Other correspondents include Newton's son, Henry Bertie, Prosper d'Epinay, Sir John Henniker Heaton and his son, Henry Thurstan Holland, Jules Lafitte, and Justin H. McCarthy.