The West Virginia. Cyclopedia
The Mingo chieftain Tah-gah-jute who had been baptized under the English or "christian" name of John Logan, a name taken from that of William Penn's secretary, James Logan.
Historical accounts of the murder of some members of Chief Logan's family member by white settlers vary. Two examples follow.
A Commonly Told Account of the Murders
April 30, 1774: A group of settlers led by Daniel Greathouse murdered eight Mingos at Barker's Tavern on the Ohio River in the Northern Panhandle, including the brother and sister of Chief Logan.
In response to the murders, Chief Logan killed eight and took two people prisoner near the Monongahela River on June 6, 1774.
On July 12, 1774, Chief Logan attacked Major William Robinson and others in present-day Monongalia County. Later that day, Logan attacked a group of settlers in Harrison County.
Logan is said to have killed at least 30 settlers during the summer.
Another Description by Thomas Jefferson
In the spring of the year 1774, a robbery and murder 70 were committed on an inhabitant of the frontiers of Virginia, by two Indians of the Shawanee tribe. The neighbouring whites, according to their custom, undertook to punish this outrage in a summary way. Col. Cresap, a man infamous for the many murders he had committed on those much-injured people, collected a party, and proceeded down the Kanhaway in quest of vengeance.
Unfortunately a canoe of women and children, with one man only, was seen coming from the opposite shore, unarmed, and unsuspecting an hostile attack from the whites. Cresap and his party concealed themselves on the bank of the river, and the moment the canoe reached the shore, singled out their objects, and, at one fire, killed every person in it. This happened to be the family of Logan, who had long been distinguished as a friend of the whites. This unworthy return provoked his vengeance.
From Thomas Jefferson's Notes on the State of Virginia
According to traditional accounts, Chief Logan refusing to participate in the signing of Dunmore's Treaty, and instead requested that a written speech, sometimes referred to as "Logan's Lament", be delivered to Lord Dunmore. The message was said to be read by a messenger to Lord Dunmore, the colonists and Native American leaders beneath the branches of a grand old elm tree, which came to be called "the Logan Elm."
Logan's speech, as reported by Thomas Jefferson's Notes on the State of Virginia:
I appeal to any white man to say, if ever he entered Logan's cabin hungry, and he gave him not meat; if ever he came cold and naked, and he clothed him not. During the course of the last long and bloody war, Logan remained idle in his cabin, an advocate for peace. Such was my love for the whites, that my countrymen pointed as they passed, and said, Logan is the friend of white men. I had even thought to have lived with you, but for the injuries of one man. Col. Cresap, the last spring, in cold blood, and unprovoked, murdered all the relations of Logan, not sparing even my women and children. There runs not a drop of my blood in the veins of any living creature. This called on me for revenge. I have sought it: I have killed many: I have fully glutted my vengeance. For my country, I rejoice at the beams of peace. But do not harbour a thought that mine is the joy of fear. Logan never felt fear. He will not turn on his heel to save his life. Who is there to mourn for Logan? -- Not one.