Statistics for occurrence #1 of “Captain Porter” in entry arkansas-the of Harper's Encyclopedia of United States History:

...Six miles up the stream they found and assailed her; but she repulsed the attack, and took shelter under the batteries at Vicksburg. Another attempt to capture her was made on July 22 by the Essex ( Captain Porter ) and the Queen of the West. Again the attempt was unsuccessful. After the repulse of the Confederates at Baton Rouge, early in August, Porter, with the Essex and two other gunboats, went in searc...
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