General Grant established his headquarters at City Point, there was no rest for the gunboats in the James River. There was an active and determined foe to contend with, and alertness was the watchword for every officer and man in the Federal flotilla. Underneath, one of the huge 100-pounder Parrott guns is being brought into position on the gunboat “Mendota” in July, 1864, ready to be trained upon the Confederates whenever they attempted to plant batteries along the shores. The work of the “Mendota's” gunners on July 28th at Four Mile Creek spoke eloquently of their coolness and accuracy of aim. With equal smartness, and scarcely more excitement than is apparent in the picture above, they served their guns under fire of shot and shell.