Submarine offensive efforts-1941-45: Charts of attacking and sinking data- December 1941 to December 1945. Report No. 54ttt(11)(c), USSBS Index Section 2

Submarine offensive efforts-1941-45: Squadrons in action. Report No. 54ttt(11)(d), USSBS Index Section 2

Submarine offensive efforts-1941-45: Number of submarines in the Pacific- December 1941 to August 1945. Report No. 54ttt(11)(a), USSBS Index Section 2

Submarine offensive efforts-1941-45: Attacks on merchant shipping-January 1943 to August 1945. Report No. 54ttt(11)(b), USSBS Index Section 2