Question: What General in the Battle of Ball's Bluff was also a graduate of West Point?

Context paragraphs:
West Point, California: West Point (formerly, Indian Gulch and Westpoint) is a census-designated place (CDP) in Calaveras County, California, in the United States.  As of the 2010 United States Census, West Point's population was 674, down from 746 as of the 2000 census.  The town is registered as California Historical Landmark #268.  There is an annual "West Point Lumberjack Days" festival in the community.  Walton's Mountain Winery & Vineyard is West Point's First Winery that opened in 2006.

West Point Band: The West Point Band (also known as the U.S. Military Academy Band or USMA Band) is the U.S. Army's oldest active band and the oldest unit at the United States Military Academy, traces its roots to the American Revolutionary War.  At that time, fifers and drummers were stationed with companies of minutemen on Constitution Island, across the river from West Point.  In 1778, General Samuel Holden Parsons' 1st Connecticut Brigade crossed the Hudson River and established West Point as a permanent military post.  After the American Revolution, Congress disbanded most of the Continental Army, but “the 55 men at West Point,” members of the 2nd Continental Artillery, remained as they were.  Among their ranks stood at least one drummer and one fifer, who alone maintained the tradition of military music at West Point.

Hun Manet: Hun Manet (Khmer: ហ៊ុន ម៉ាណែត ; born 20 October 1977) is a lieutenant general in the Royal Cambodian Armed Forces (RCAF).  He is the son of Cambodian Prime Minister Hun Sen.  His birth parents are Bun Rany and Hun Sen.  He grew up and received his General Education in Phnom Penh and later joined the Royal Cambodian Armed Forces in 1995, the same year he entered the prestigious United States Military Academy at West Point.  Having received his diploma on May 29, 1999.  Hun Manet became the first Cambodian graduate of the Academy.  Upon graduation from West Point, he received his bachelor's degree in Economics and a commission as Lieutenant in the Royal Cambodian Army.  He also received his Master of Arts in Economics from New York University in 2002, and a PhD in Economics from University of Bristol, United Kingdom, in 2008.  On 23 May 1999 he became the first Cambodian to graduate from the United States Military Academy.

Hamilton H. Howze: Hamilton Hawkins Howze (December 21, 1908 – December 8, 1998) was born in West Point, New York, while his father, Major General Robert Lee Howze, an 1888 West Point graduate, was serving as Commandant of West Point.  He was a developer and advocate of helicopter-borne air mobility warfare.

Battle of Ball's Bluff: The Battle of Ball's Bluff in Loudoun County, Virginia on October 21, 1861, was one of the early battles of the American Civil War.  In the battle, Union Army forces of the Army of the Potomac, under the command of Major General George B. McClellan, suffered a humiliating defeat.

Battle of West Point: The Battle of West Point was fought on April 16, 1865 in West Point, Georgia, during General James H. Wilson's raid in the South during the American Civil War.  This battle was fought at Fort Tyler seven days after Confederate General Robert E. Lee surrendered to Union General Ulysses S. Grant and two days after the assassination of President Abraham Lincoln, making it one of the last battles of the Civil War east of the Mississippi River and making Fort Tyler the last Confederate fort captured by the Union.  The same day, just 30 miles to the south, the Battle of Columbus, Georgia, was fought by another division of Wilson's raiders.  News of the surrender of Robert E. Lee's Army of Northern Virginia reached the opposing forces in Georgia the day after the battle effectively ending the war east of the Mississippi River.

George B. McClellan: George Brinton McClellan (December 3, 1826October 29, 1885) was an American soldier, civil engineer, railroad executive, and politician.  A graduate of West Point, McClellan served with distinction during the Mexican–American War, and later left the Army to work in railroads until the outbreak of the American Civil War.  Early in the war, McClellan was appointed to the rank of major general and played an important role in raising a well-trained and organized army, which would become the Army of the Potomac; he served a brief period (November 1861 to March 1862) as general-in-chief of the Union Army.  Although McClellan was meticulous in his planning and preparations, these very characteristics hampered his ability to challenge aggressive opponents in a fast-moving battlefield environment.  He chronically overestimated the strength of enemy units and was reluctant to apply principles of mass, frequently leaving large portions of his army unengaged at decisive points.

Fort Putnam: Fort Putnam was a military garrison during the Revolutionary War at West Point, New York, United States.  Built by a regiment of Colonel Rufus Putnam's 5th Massachusetts Regiment, it was completed in 1778 with the purpose of supporting Fort Clinton, which sat on the edge of the Hudson River about a 3/4 of a mile away.  The fort was rebuilt and enlarged in 1794 before falling into disuse and disrepair as the military garrison at West Point became obsolete in the early mid-19th century.  It underwent a major preservation as a historical site in 1909, and has been continually in the process of preservation since.  Sitting at an altitude of 500 feet above sea level, it was West Point's largest garrison during the Revolutionary War.  The Fort is under the supervision of the West Point Museum Director, David M. Reel and is operated by the United States Army Garrison, West Point.  Access to the Fort is seasonal and as summer staff are available.

Sedgwick Monument (West Point): Sedgwick Monument is a memorial to Union General John Sedgwick at West Point.  "Uncle John" Sedgwick was born in Cornwall, Connecticut, 67 miles northeast of West Point, New York.  Sculpted by Launt Thompson and dedicated in 1868, the monument was erected by officers and soldiers of the 6th Army Corps to commemorate Major General Sedgwick and his death at the Battle of Spotsylvania Court House in 1864.  Originally, the monument was located on the northwest edge of the Plain, it was later relocated to its current location at Trophy Point across Washington Road from Battle Monument.  Legend holds that if a cadet is deficient in academics, the cadet should go to the monument at midnight the night before the term-end examination, in full dress, under arms, and spin the rowels on the monument’s spurs.  With the resulting good luck, the cadet will pass the test.

West Point, New York: West Point is the oldest continuously occupied military post in the United States.  West Point was established in 1775 by George Washington who considered it the most important strategic position in America.  Until January 1778, West Point was not occupied by the military.  On January 27, 1778, Brigadier General Samuel Holden Parsons and his brigade crossed the ice on the Hudson River and climbed to the plain on West Point and from that day to the present, West Point has been occupied by the United States Army.  It comprises approximately 16000 acre including the campus of the United States Military Academy at West Point, which is also frequently called "West Point".  It is a Census Designated Place (CDP) located in the Town of Highlands in Orange County, New York, located on the western bank of the Hudson River.  The population was 6,763 at the 2010 census.  It is part of the New York–Newark–Jersey City, NY–NJ–PA Metropolitan Statistical Area as well as the larger New York–Newark, NY–NJ–CT–PA Combined Statistical Area.

Supporting paragraphs: Battle of Ball's Bluff George B. McClellan
Answer: George B. McClellan