Statistics for occurrence #1 of “Mamaroneck, N. Y.” in entry de-lancey-edward-floyd of Harper's Encyclopedia of United States History:

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Historian; born at Mamaroneck, N. Y. , April 3, 1821; graduated at Hobart College in 1843; is a member and officer of many historical organizations, and the author of biographies of James De Lancey, James W. Beekman, William Allen; ; , a...
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