Daniel Ammen, Confederate Military History, a library of Confederate States Military History: Volume 7.2, The Atlantic Coast
Clement Anselm Evans, Ed.

From information derived from Robert Small, a reconnoissance of Stono Inlet was made, and on the next day the gunboats Unadilla, Pembina, and Ottawa crossed the bar under Commander Marchand, and proceeded up the river to the old fort opposite Legareville. The enemy fired the barracks on the approach of the vessels. A picket guard of six at the magazine of the fort were taken prisoners. On the 29th of May the Pawnee crossed the bar, the Huron having entered the day before; the inlet was entered at extreme high water, nevertheless the Pawnee struck heavily twenty times. Nothing was more trying on officers commanding vessels than thumping them over bars, often with great risk of leaving them there.

The Pawnee ascended to Legareville; from thence Captain Drayton in the Ottawa, a smaller vessel than his own command, accompanied by the Huron and Pembina, reached the last bend of the river below Wappoo Cut, when the enemy opened fire from a very heavy rifled gun, some of the shot falling only a little short of the vessels. The Pembina and Huron were left for the night a little above Newtown Creek. The removal of a few piles from an obstruction enabled Captain Drayton to bring the Pawnee up the river, which he did, with the Ellen accompanying, as far as Newtown Creek. From that point Captain Drayton continued on in the Ellen, and rounding a point they were in sight of the fortification from which they had been fired upon the previous day. From Parrott rifled guns, shells fired on board of the Ellen, with 16° elevation and 20″ fuzes, just reached the enemy. He replied with accuracy from the heavy rifle before mentioned.