http://www.sonofthesouth.net/leefoundation/battle-fort-sumter.htm

"Fox was sent to visit Charleston Harbor. With Captain Hartstene of the navy, who had joined the Confederates, he visited Fort Sumter, March 21, by permission of Governor Pickens, and ascertained that Anderson had supplies that would last him until April 15."

In my opinion this is one of the better sites that i read today, all pretty much say the same thing.

GP