Papers of Vice Admiral Sir Ian McGeoch, 1946-1996, including papers from McGeoch's naval career including his time as commander of Royal Navy Base Portsmouth, 1955; as Naval Liaison Officer, RAF Coastal Command, 1955-1956 and as Flag Officer, Submarines and Northern Ireland and Scotland, 1965-1970.

Research notes, essays and transcripts of talks by McGeoch on naval topics including research notes for The Princely Sailor: Mountbatten of Burma; editorials and articles by McGeoch for Naval Forces; correspondence including with Vice Admiral Sir Louis Le Bailly, 1993-1994; Sir John Hackett and Michael Howard, 1971; papers relating to the Royal United Services Institute for Defence Studies including correspondence regarding submissions and talks by McGeoch, newsletters, annual reports, articles by McGeoch, council minutes, charter, bye-laws and standing orders, 1950-1991 and printed books and journals on military history.

Papers and correspondence on topics including party politics in McGeoch's local area, particularly the Conservative Party, 1971-1974; the British Atlantic Council, 1974-1994; national security, disarmament and arms control, 1974-1986; the security of North Sea oil rigs, 1975-1981; fisheries and pollution in the North Sea, 1976; the Baltic and Mediterranean protection of the marine environment; UK defence policy, 1981; the British Atlantic Committee, 1983-1984; the Atlantic Treaty Association Assembly, Toronto, 8-13 Oct 1984; House of Commons Defence Committee, 1986-1988; the future of the Royal Navy Engineering College, Manadon, and McGeoch's campaign to keep it open, 1993; McGeoch's letter to The Times and on whether Polaris submarines should have a Christian launching service and the education of Royal Navy officers, 1993-1994.