Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters, to the Office of the Chief of Naval Operations
<Cablegram February 21, 1918,>
From: Vice Admiral Sims
4228 British official shipping losses for week ending February sixteenth report as sunk eighty six thousand three hundred thirty two gross tons Allied and neutral shipping as damaged eleven thousand seven hundred thirteen gross tons British shipping. 22221.
Source Note: Cy, DNA, RG 45, Entry 517B.