Japanese submarine activities according to the U.S. Joint Intelligence Committee. Daily summary dated 13 January 1942

An item reported that radio intelligence pointed out that seven enemy submarines were present between Hawaii and Johnston Islands and in the vicinity of Midway Island with submarine activities east of Hawaii relaxed.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary dated 13 January 1942 No. 34 

Japanese submarines bombarded Midway Island according to the U.S. Joint Intelligence Committee. Daily summary dated 29 January 1942

An item reported that 1-2 Japanese submarines bombarded on 25 January Midway Island although without damaging anything.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 50 dated 29 January 1942