The Monitor USS Amphitrite was moored at the mouth of the Wolf River where it meets the Mississippi & apparently caused silt buildup causing the eventual forming of Mud Island. This picture and above caption was sent by Henry Carlyle Acosta. Thank you Henry for this very nice picture of the USS Amphitrite and the history. The white building just to her stern appears to the US Custom house.
Credit: From Monitor Amphitrite. Sysid 97315. Scanned as tiff in 2008/03/03 by MDAH. Credit: Courtesy of the Mississippi Department of Archives and History.