... down suddenly and capturing a regiment or more of National troops occupying Beaufort and the island of Port Royal. For this purpose he supposed a necessary preliminary was to place obstructions at Seabrook's Point , on Whale Branch, two and a half miles from the ferry, on the one side, and at Boyd's Neck, on the Coosaw, five miles below the ferry, to prevent the ascent of gunboats; then by constructing a heavy ...