Statistics for occurrence #1 of “Mr. Pomeroy” in entry senate-united-states of Harper's Encyclopedia of United States History:

...oceedings of the trial of the impeachment of President Johnson, March 30, 1868: At half-past 12 o'clock, P. M., the chief-justice of the United States entered the Senate chamber, escorted by Mr. Pomeroy , chairman of the committee heretofore appointed for that purpose. The chief-justice.— The sergeant-at-arms will open the court by proclamation. The sergeant-at-arms.— Hear ye! ...
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