Copies of a privately-circulated memoranda by Sir Reginald Custance on the controversy over German submarine attacks on private ships, with related correspondence between AHP and individuals including Sir Horace Plunkett; Captain Herbert Richmond; Alfred C. Dewar; and Geoffrey Dawson. With Anthony Pollen's notes.

Typescript copies of correspondence between AHP, newspaper editors, and other various individuals on British naval policy, the post-war settlement in Europe, and India; including Reginald Custance, Haldane [Richard Haldane, 1st Viscount Haldane], Winston Spencer Churchill, Ogden Mills, and Lord Lytton [Victor Bulwer-Lytton, 2nd Earl of Lytton].

Correspondence between AHP and various individuals including Geoffrey Dawson at the Times, Sir William Berry at the Daily Telegraph, Captain Liddell Hart, Admiral Bacon, Admiral Sir Reginald Custance, Douglas Nicholson, Admiral Sir William Henderson, and Captain Sidney Bailey, on subjects relating to British naval policy, the London Naval Conference, and international relations. With copies of AHP's published letters and newspaper articles.

Copies of and extracts from correspondence between AHP and Custance, and materials relating to Custance's career and writings collected by Anthony Pollen. With a carbon copy of a letter from AHP relating to naval gunnery trials in the summer of 1909 and five original letters from Custance to AHP dated 3 December 1913; 9, 24, and 28 November 1916; and 23 July 1931. Also includes a copy of 'The Fighting Power of the Capital Ship', by Custance.

Admiral Sir Reginald Neville Custance's correspondence, mostly with AHP, and with naval officers. Also includes copies of articles by Reginald Custance on naval gunnery and tactics. The related papers seem to have been given to AHP by Custance with a view to AHP publishing a commentary on Custance's approach to naval strategy.