Naval History and Heritage Command

Naval History and Heritage Command

Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters, to the Office of the Chief of Naval Operations

Chronological Copy.                                 File No.

Cablegram Sent April 9, 1918  MJK

To     Opnav Washington.                    Serial No. 6255

Prep. by      N-3           SX     D.R.

                                      29 ADR

VERY SECRET.

6255. Your 4641.1 In October last there were six Holland type submarines2 being assembled at Micolaev, Black Sea,3 which were shipped from Van Couver [that is, Vancouver]. The five shipped from United States in 1916 and assembled at Revel and Helsingfors4 have all been sunk. As far as known, there are no unassembled submarines at Petrograd. 17209 6255

SIMS.

Source Note: Cy, DNA, RG 45, Entry 517B.

Footnote 1: Opnav’s cable 4641 has not been found, but for more information, see: Sims to Benson, 6 April 1918.

Footnote 2: The Holland-class submarine was the first submarines built for the British Royal Navy from 1901 to 1903.

Footnote 3: That is, Nikolayev (modern-day Mykolaiv).

Footnote 4: Revel is the Russianized version of the German name of Tallinn, the capital of Estonia; Helsingfors is the Swedish pronunciation for Helsinki, the capital of Finland.

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