Statistics for occurrence #1 of “Commodore Perry” in chapter 4 of Thomas Wentworth Higginson, Harvard Memorial Biographies:

...l he visited Oregon and Vancouver's Island, and finally returned to the Atlantic States in February, 1852. In the following August he joined at Norfolk the steamer Powhatan, which made a part of Commodore Perry 's famous Japan expedition. Doctor Wheelwright was not present at the signing of the treaty between the United States and Japan, for he was ordered to the Plymouth, which left for China before that ...
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