Gideon Welles to Simon Cameron, September 21, 1861

Hon. SIMON CAMERON, Secretary of War:

SIR: In view of the exposed and defenseless condition of the powder magazine at the navy-yard, Mare Island, Cal. (being guarded only by two watchmen and a small steamer, the latter being now and most of the time off on duty connected with the War Department), and the easiness with which it could be taken by any considerable force, without even alarming the men at the yard, I would most earnestly request that General Sumner may be instructed to locate a company of soldiers there, in the absence of marines. The importance of this request will be seen immediately, as there is at present a large quantity of powder and ammunition in the magazine.

very respectfully,