Statistics for occurrence #1 of “St. Mary's Rivers” in alphabetic letter M, entry group 6, entry meigs-fort of Harper's Encyclopedia of United States History:

...le skirmishes with what he supposed to be the advance of a more powerful force. Expecting to find Fort Meigs invested by the British and Indians, he took with him all the troops on the Auglaize and St. Mary's Rivers . He was agreeably disappointed to find, on his arrival, that no enemy was near in force. They soon appeared, however. Proctor, at Fort Malden, had formed plans for an early invasion of the Maum...
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