Statistics for occurrence #1 of “Mr. Colburn” in chapter 6, page 43 of Historic leaves, volume 8, April, 1909 - January, 1910:

...y visit, when J. Haywood, then in charge, is pronounced an excellent teacher, and his school gives a fine exhibition. The male teachers next named were Simeon Booker, for the winter of 1819-20, and Mr. Colburn , for 1820-21. Nothing has been learned of these gentlemen; the latter may have been Joshua O. Colburn, who taught the Milk Row School a few seasons later. At his examination, March 22, 1821, twen...
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