Memoir of the "Invergordon mutiny" in September 1931 when the British Atlantic Fleet, anchored at Invergordon in the Cromerty Firth in Scotland, mutinied in the face of a pay cut

These papers mostly consist of copies of official letters and documents from the time of the Invergordon mutiny in September 1931. There are also letters written to Henderson by Rear-Admiral Tomkinson, as well as press cuttings relating to Admiral Keyes raising a question about the Admiralty's treatment of Tomkinson from 1934.

Many of the papers relate to the Invergordon Mutiny and Tomkinson's subsequent treatment by the Admiralty. The British attacks on Zeebrugge and Ostend in 1918 also feature in some of the documents. Tomkinson left a large number of photographs which illustrate his naval career and his family life.