German submarines threatening American and Canadian coastal shipping according to the U.S. Joint Intelligence Committee. Daily summary dated 14 January 1942

An item reported that German submarines gathered south of Newfoundland wch was a vital area for forming or dispersing convoys and a focal point for either unescorted or coastal convoy traffic. Further more were 3-4 enemy submarines active in the Gulf of Maine perhaps as far as south as the Nantucket shoals. These submarines were probably bound to the south and were a large threat for the coastal shipping.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary dated 14 January 1942 No. 35.