“Extraordinary Facts in Acoustics”

An intelligent and very respectable gentleman, named Ebenezer Snell, who is still living, at the age of eighty and upwards, was in a corn-field with a negro on the 17th of June, 1776, in the township of Cumminton, Mass., one hundred and twenty-nine miles west of Bunker Hill by the course of the road, and at least one hundred in an air-line. Some time during the day, the negro was lying on the ground, and remarked to Ebenezer that there was war somewhere, for he could distinctly hear the cannonading. Ebenezer put his ear to the ground, and also heard the firing distinctly, and for a considerable time. He remembers the fact, which made a deep impression on his mind, as plainly as though it was yesterday.

— Charles Bombaugh, Facts and Fancies for the Curious From the Harvest-Fields of Literature, 1860