There settlers engaged them in battle, with a few casualties on each side. The following day, Clark's party abandoned the original idea of proceeding to Kentucky. Expecting retaliation, they broke camp and moved with Cresap's men to his headquarters at Redstone Old Fort. Immediately after the Pipe Creek attack, settlers killed relatives of the Mingo leader Logan. Up until this point, Logan had expressed peaceful intentions toward the settlers. He and his hunting party were camped on the west bank of the Ohio at Yellow Creek, about 30 miles above Zanesburg (near present day Steubenville, Ohio) and across the river from Baker's Bottom. On April 30 some members of the hunting party (Logan was not among them) crossed the river to the cabin of Joshua Baker, a settler and rum trader. The visiting Mingo included Logan's younger brother, commonly known as John Petty, and two closely related women. The younger woman was pregnant and also had an infant girl with her. The father of both these children was John Gibson, a well-known trader. Once the group was inside Baker's cabin, some 30 frontiersmen, led by Daniel Greathouse, suddenly crowded in and killed all the visitors except the infant. When Logan heard of the massacre, he was led to believe that Cresap, not Greathouse, was the man responsible for attack. However, many people familiar with the incident (including Clark) knew that Greathouse and his men were the ones who had killed the party. Settlers along the frontiers realized that these killings were likely to provoke the remaining Indian nations of the Ohio Country to attack. Settlers remaining on the frontier immediately sought safety, either in blockhouses or by fleeing eastward across the Monongahela River. Many even traveled back across the Allegheny Mountains. Their fear was well founded. Logan and small parties of Shawnee and Mingo soon began striking at frontier settlers in revenge for the murders at Yellow Creek. Early in May 1774, Dunmore received word that fighting had begun at Yellow Creek and other points on the Ohio. He requested the legislature to authorize general militia forces and fund a volunteer expedition into the Ohio River valley. According to historians Eric Hinderaker and Peter C. Mancall in "At the Edge of Empire" (2003):  With the new forces, Dunmore advanced toward the Ohio where he split his force into two groups: one would move down the Ohio from Fort Pitt (now Pittsburgh, PA), 1,700 men led by him, and another body of 800 troops under Colonel Andrew Lewis would travel from Camp Union (now Lewisburg, WV) with the two forces rendezvousing at the mouth of the Great Kanawha River.