Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters to British Admiralty
SENT: June 22, 1917. TO: British Admiralty.
836. Your 529 Eighteen Destroyers now leaving to convoy Transports will be absent until about July First (stop) From that date on it is probable that eight Destroyers will be available at all times for escort one convoy a week from New York (stop) Commander-in-Chief returns 23rd June subject will be referred to him.
Source Note: Cy, DNA, RG 45, Entry 517B.