All of these are coming from "The War of the Rebellion: Official Records of the Union and Confederate Armies, Series 1, Vol. 1."
APRIL 12TH, 1861:
CSA Secretary of War L.P. Walker to Beauregard: "What was Major Anderson's reply to the proposition contained in my dispatch of last night?"
Gen. Beauregard, Charleston, S.C. to L.P. Walker: "He would not consent. I write to-day."
HEADQUARTERS PROVISIONAL FORCES, Charleston, S.C., April 12, 1861.
Hon. L.P. Walker, Secretary of War:
"SIR: I have the honor to transmit the inclosed copy of a correspondence with Major Anderson, in consequence of which our fire was opened upon Fort Sumter at 4:30 o'clock this morning, as already communicated to you by telegraph.
"The pilots reported to me last evening that a steamer, supposed to be the Harriet Lane, had appeared off the harbor."
G.T. BEAUREGARD, Brigadier-General Commanding.
So, It's War, Then. --Old B-R'er