Statistics for occurrence #1 of “McClure, Sir Robert John Le Mesurier” in entry mcclure-sir-robert-john-le-mesurier of Harper's Encyclopedia of United States History:

... McClure, Sir Robert John Le Mesurier
Arctic explorer; born in Wexford, Ireland, Jan. 28, 1807. In 1850-54 he explored the polar seas north of America in the sh...
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