Question: What is the middle name of the leader of Quantrill's Raiders?

full_context: Document 1: James J. Andrews: James J. Andrews (c. 1829 – June 7, 1862) was a Kentucky civilian who worked for the Union Army during the early years of the American Civil War. He led a daring raid behind enemy lines on the Western and Atlantic Railroad, known as the Great Locomotive Chase. The mission failed and Andrews and seven fellow raiders were executed by the Confederates on the charge of spying.
Document 2: Centralia Massacre (Missouri): The Centralia Massacre was an incident during the American Civil War in which twenty-four unarmed Union soldiers were captured and executed at Centralia, Missouri on September 27, 1864 by the pro-Confederate guerrilla leader William T. Anderson. Future outlaw Jesse James was among the guerrillas.
Document 3: William T. Anderson: William T. Anderson (1840 – October 26, 1864)—known as "Bloody Bill" Anderson—was one of the deadliest and most brutal pro-Confederate guerrilla leaders in the American Civil War. Anderson led a band that targeted Union loyalists and Federal soldiers in Missouri and Kansas.
Document 4: Cole Younger: Thomas Coleman "Cole" Younger (January 15, 1844 – March 21, 1916) was an American Confederate guerrilla during the American Civil War and later an outlaw leader with the James–Younger Gang. He was the eldest brother of Jim, John and Bob Younger, who were also members of the gang.
Document 5: Jesse James: Jesse Woodson James (September 5, 1847April 3, 1882) was an American outlaw, bank and train robber, guerrilla, and leader of the James–Younger Gang. Raised in the "Little Dixie" area of western Missouri, James and his family maintained strong Southern sympathies. He and his brother Frank James joined pro-Confederate guerrillas known as "bushwhackers" operating in Missouri and Kansas during the American Civil War. As followers of William Quantrill and "Bloody Bill" Anderson, they were accused of participating in atrocities against Union soldiers and civilian abolitionists, including the Centralia Massacre in 1864.
Document 6: Stand Watie: Stand Watie (Cherokee: ᏕᎦᏔᎦ , "Degataga ", 'Stand firm' ) (December 12, 1806 – September 9, 1871) — also known as Standhope Uwatie, Tawkertawker, and Isaac S. Watie — was a leader of the Cherokee Nation, and not only a brigadier general of the Confederate States Army during the American Civil War, but the only Native American general of the Confederate Army. He commanded the Confederate Indian cavalry of the Army of the Trans-Mississippi, made up mostly of Cherokee, Muskogee and Seminole, and was the final Confederate general in the field to cease hostilities at war's end.
Document 7: Quantrill's Raiders: Quantrill's Raiders were the best-known of the pro-Confederate partisan rangers ("bushwhackers") who fought in the American Civil War. Their leader was William Quantrill and they included Jesse James and his brother Frank.
Document 8: William Quantrill: William Clarke Quantrill (July 31, 1837 – June 6, 1865) was a Confederate leader during the American Civil War.
Document 9: Confederate units of Indian Territory: Confederate Units of Indian Territory consisted of Native Americans from the Five Civilized Tribes — the Cherokee, Chickasaw, Choctaw, Creek, and Seminole nations. The 1st Cherokee Mounted Rifles were commanded by the highest ranking Native American of the war: Brig. Gen. Stand Watie, who also became the last Confederate General to surrender on June 23, 1865.
Document 10: Quanah Parker: Quanah Parker (Comanche "kwana", "smell, odor") (  1845 or 1852 – February 23, 1911) was a Comanche war leader of the Quahadi ("Antelope") band of the Comanche people. He was born into the Nokoni ("Wanderers") band, the son of Comanche chief Peta Nocona and Cynthia Ann Parker, an Anglo-American, who had been kidnapped as a child and assimilated into the tribe. Following the apprehension of several Kiowa chiefs in 1871, Quanah emerged as a dominant figure in the Red River War, clashing repeatedly with Colonel Ranald S. Mackenzie. With whites deliberately hunting American bison, the Comanche's primary livelihood, into extinction, Quanah finally surrendered and peaceably led the Quahadi to the reservation at Fort Sill, Oklahoma.
Document 11: Lee's Summit Historical Cemetery: Lee’s Summit Historical Cemetery is a cemetery in Lee's Summit, Missouri. Many local notable people were buried there, including Nicholas B. Langsford, Pleasant Lea, George Neal, William B. Howard, William S. Cowherd, and former mayors from Lee’s Summit and surrounding areas. Civil War veterans and several members of the Confederate guerrilla band known as Quantrill’s Raiders were also buried there, including Cole Younger.
Document 12: Jayhawker: Jayhawkers is a term that came to prominence just before the American Civil War in Bleeding Kansas, where it was adopted by militant bands affiliated with the free-state cause. These bands, known as "Jayhawkers", were guerrilla fighters who often clashed with pro-slavery groups from Missouri known at the time as "Border Ruffians". After the Civil War, the word "Jayhawker" became synonymous with the people of Kansas. Today a modified version of the term, Jayhawk, is used as a nickname for a native-born Kansan, but more typically for a student, fan, or alumnus of the University of Kansas.
Document 13: Mount Oread Civil War posts: Lawrence, Kansas was not well defended in the early part of the Civil War. That ended with William Quantrill's devastating guerrilla raid August 21, 1863. By early 1864 Union soldiers were permanently camped on the top and slopes of Mount Oread, then to Lawrence's southwest. It seems the camp was originally named Camp Ewing, after Brig. Gen. Thomas Ewing.
Document 14: Lawrence massacre: The Lawrence massacre, also known as Quantrill's raid, was an attack during the American Civil War (1861-1865) by the Quantrill's Raiders, a Confederate guerilla group led by William Quantrill, on the Unionist town of Lawrence, Kansas.
Document 15: Skirmish at Albany, Missouri: The Skirmish at Albany, Missouri was a battle that was fought between the Union army and the Quantrill's Raiders in Gentey County, Missouri on October 26, 1864. The battle resulted a Union victory and the notorious Quantrill Raider Member William T. Anderson also known as Bloody Bill, was killed at this battle.
ground_truth: Clarke