From, Reminiscences of Forts Sumter and Moultrie by Abner Doubleday
Chap. III PRELIMINARY MOVEMENTS OF THE SECESSIONISTS.
http://www.pddoc.com/skedaddle/articles/sumter_and_moultrie-03.htm
All bold is mine:
On the 1st of December, Major Anderson made
a full report to Secretary Floyd in relation to our condition and resources.
It was accompanied with requisitions, in due form, for supplies and military material. Colonel Gardner, before he left, had already applied for rations for the entire command for six months.
Previous to Lincoln's election,
Governor Gist had stated that in that event the State would undoubtedly secede, and demand the forts, and that any hesitation or delay in giving them up would lead to an immediate assault. Active preparations were now in progress to carry out this threat. In the first week of December we learned that cannon had been secretly sent to the northern extremity of the island, to guard the channel and oppose the passage of any vessels bringing us re-enforcements by that entrance. We learned, too,
that lines of countervallation had been quietly marked out at night, with a view to attack the fort by regular approaches in ease the first assault failed. Also, that two thousand of the best riflemen in the State were engaged to occupy an adjacent sand-hill and the roofs of the adjoining houses, all of which overlooked the parapet, the intention being to shoot us down the moment we attempted to man our guns. Yet the Administration made no arrangements to withdraw us, and no effort to re-enforce us, because to do the former would excite great indignation in the North, and the latter might be treated as coercion by the South. So we were left to our own scanty resources, with every probability that the affair would end in a massacre. Under these circumstances
the appropriating of $150,000 to repair Fort Moultrie and $80,000 to finish Fort Sumter by the mere order of the Secretary of War, without the authority of Congress, was simply an expenditure of public money for the benefit of the Secessionists, and I have no doubt it was so intended. Forts constructed in an enemy's country, and left unguarded, are built for the enemy.
(snip)
To resume the thread of my narrative. The fort by this time had been considerably strengthened. The crevices were filled up, and the walls were made sixteen feet high, by digging down to the foundations and throwing up the surplus earth as a glacis. Each of the officers had a certain portion given him to defend. I caused a sloping picket fence, technically called
a fraise, to be projected over the parapet on my side of the work, as an obstacle against an escalading party.
I understood that this puzzled the military men and newspapers in Charleston exceedingly. They could not imagine what object I could have in view. One of the editors said, in reference to it, “Make ready your sharpened stakes, but you will not intimidate freemen.”
There was one good reason why our opponents did not desire to commence immediate hostilities. The delay was manifestly to their advantage, for the engineers were putting Fort Sumter in good condition at the expense of the United States. They (the rebels) intended to occupy it as soon as the work approached completion. In the mean time, to prevent our anticipating them, they kept two steamers on guard, to patrol the harbor, and keep us from crossing. These boats contained one hundred and twenty soldiers, and were under the command of Ex-lieutenant James Hamilton, who had recently resigned from the United States Navy.
The threatening movements against Fort Moultrie required incessant vigilance on our part, and we were frequently worn out with watching and fatigue. On one of these occasions Mrs. Seymour and Mrs. Doubleday volunteered to take the places of Captain Seymour and myself, and they took turns in walking the parapet, two hours at a time, in readiness to notify the guard in case the minute-men became more than usually demonstrative.