Statistics for occurrence #1 of “Oswegatchie River” in entry ogdensburg-battles-at of Harper's Encyclopedia of United States History:

...e St. Lawrence. A threatened invasion of northern New York from that quarter caused Gen. Jacob Brown to be sent to Ogdensburg to garrison old Fort Presentation, or Oswegatchie, at the mouth of the Oswegatchie River . Brown arrived on Oct. 1, and the next day a British flotilla, composed of two gunboats and twenty-five bateaux, bearing about 750 armed men, left Prescott to attack Ogdensburg. At the latter pla...
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