History of Wyoming and a series of letters from Charles Miner to his son William Penn Miner, Esq.

These letters desribe a "Martin Breakall", on July 12, 1780, being tried for and "found guilty of intending to desert to the Indians, take with him the Tory prisoners, and threatening to scalp one Adam Sybert". He was sentenced to "run the gauntlet four times to the troops of this garrison," and the sentence was carried out the next day.

1780 is the earliest mention of the name Breakall that I've ever seen.