Statistics for occurrence #1 of “Dr. O. W. Holes” in chapter 2 of Edward L. Pierce, Memoir and letters of Charles Sumner: volume 3:

...mes, though rarely, one of fifteen or twenty or twenty-five. Among speakers who were then in most request for such occasions were Henry Ward Beecher, E. H. Chapin, R. W. Emerson, E. P. Whipple, and Dr. O. W. Holes . Not only clergymen, and those who ranked distinctively as literary men, but also lawyers and statesmen, were easily persuaded to appear with some favorite topic before sympathetic and intelligent ...
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