The woman with the baby was his sister.

Logan tore up from the earth the bloody tomahawk and, raising it above his head, swore that he would not rest till he had taken ten white lives to pay for each one of his kin.

Again the Mingo warriors declared for war and this time were not dissuaded.

But Logan did not join this red army.
He went out alone to wreak his vengeance, slaying and scalping.
Meanwhile Dunmore prepared to push the war with the utmost vigor.

His first concern was to recall the surveying parties from Kentucky, and for so hazardous an errand he needed the services of a man whose endurance, speed, and woodcraft were equal to those of any Indian scout afoot.
Through Colonel Preston, his orders were conveyed to Daniel Boone, for Boone's fame had now spread from the border to the tidewater regions.