Lionel Preston and Minelayers

NPG x124028; Sir Lionel George Preston; Emily Elizabeth (nÈe Bryant), Lady Preston by Bassano
Lionel Preston in 1925.

As some will have no doubt gathered, I’ve just returned from a trip to California to consult the papers of Arthur J. Marder. One of the first items I looked at in my three and half days in the archive was a letter from Admiral Sir Lionel G. Preston, who served as Director of Minesweeping at the Admiralty in the First World War. The letter was dated 9 May 1953, and was addressed to long-time Marder correspondent Admiral Sir William M. ‘Bubbles’ James, who was in charge of N.I.D. 25, or ‘Room 40’, from 1917 onwards. Preston’s letter deals mainly with various tricks designed to fool the Germans, including publishing fake pamphlets showing mine-swept channels and Admiral Sir W. Reginald ‘Blinker’ Hall, the then Director of Naval Intelligence, selling them to enemy agents.

The most interesting aspect of Preston’s letter to me, however, is the following sentence:

Blinker allowed me to follow the doings of all minelayer Captains & so to judge their characteristics.

This, if true, is an interesting insight, although to what extent Preston or Hall could get into the minds of German minelaying captains is one for other historians to dwell upon perhaps.

Earlier in the letter Preston stated that he had interviewed the captain of U.C.44, Kurt Tebbenjohanns, who was captured when his minelaying submarine was sunk off Waterford on 4 August 1917. If he did interview Tebbenjohanns, was he the man responsible for the official interview, a transcript of which is in ADM 116/1513?

At any rate, Preston appears to have been the source for the claim made by James in his biography of Hall (The Eyes of the Navy, 116) that UC.44 was tricked onto an unswept German minefield, writing:

Our Q code had become compromised. I suggested we left some mined entrance left uncleared, knowing the regularity with which the ‘U’ boat returned to his beat.

Waterford was chosen, & DNI informed Luigi [Sir Lewis ‘Luigi’ Bayly] (C in C Queenstown) who agreed to secretly closing the port for at least a fortnight from the date the mines were laid.

Robert Grant has called this version (which was repeated by Beesly in Room 40, 265) into doubt, suggesting that U.C.44 was sunk by one of her own mines (Grant, U-Boat Hunters, 54-55). As Preston himself admitted in his letter to James, ‘I wish I could enlarge but time has blotted most of the names’.

Note: Quite why James gave the actual letter to Marder rather than a copy is a mystery to me. I would not give any of my correspondence away!

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