[1] When Peter Henry was fourteen years of age, their home, six miles from Greensburg, Pennsylvania, was attacked by a band of Indians, and his mother and the two youngest children were killed.
Peter and two younger children were taken prisoners, but they had proceeded only a short distance when the youngest child began to cry and was immediately tomahawked.
The alarm was brought to Pittsburgh, and Colonel Daniel Brodhead sent three of the "brother officers" from Fort Pitt about June 10, 1779, to reconnoiter the Seneca country.
Brady and his party, instead of moving towards Sewickly, as the first detachment had done, painted themselves, donned Indian dress, crossed the Allegheny and advanced up its west side, carefully examining the mouths of all its principal tributaries, especially the eastern ones.
Captain Brady retook six horses, the two prisoners, the scalps, all their plunder, all the Indians' guns, tomahawks, match-coats, and moccasins.