Question: Tirrel Burton was the assistant football coach at which historically black college in Wilberforce, Ohio?
Context: Central State University (CSU) is a historically black university (HBCU) located in Wilberforce, Ohio, United States.  It is a member-school of the Thurgood Marshall College Fund. Arnett William "Ace" Mumford (November 26, 1898 – April 28, 1962) was an American football coach, who was an alumnus of Wilberforce University.  He served as the head football coach at historically black colleges and universities in Texas and Louisiana from 1924 to 1961, compiling a career college football record of 233–85–23.  His head coaching positions were at Jarvis Christian College (1924–1926), Bishop College (1927–1929), Texas College (1931–1935), and Southern University (1936–1961).  Mumford led the Southern Jaguars football team to five black national championships.  He also coached Southern to the 1941 black national championship in basketball by taking the National Invitational Intercollegiate Basketball Tournament.  Mumford was inducted into the College Football Hall of Fame in 2001. Tirrel Burton (November 19, 1929 – January 17, 2017) was an American football player, coach, and radio broadcaster.  He played halfback for Ara Parseghian's championship teams at Miami University in 1954 and 1955 and led the undefeated, untied 1955 team in rushing, scoring, pass interceptions, kickoff returns and punt returns, while breaking the university's all-time single-season scoring record.  He played one year of professional football in 1956 for the Ottawa Rough Riders of the Canadian Football League.  He was an assistant football coach at Central State University (1968), Miami University (1969) and the University of Michigan (1970–1991).  He became a radio announcer for Michigan Wolverines football games on WUOM radio in 1994. Fred Thomas "Pop" "Pops" "Big" Long (January 22, 1896 – March 23, 1966) was an African American professional baseball player in the Negro Leagues and a college football coach.  He was the head football coach at four historically black colleges and universities in Texas between 1921 and 1965, compiling a career record of 227–151–31.  He was the head coach at Wiley College in Marshall, Texas for 35 years from 1923 to 1947 and again from 1956 to 1965.  He led the Wiley Wildcats football team to three black college football national championships, in 1928, 1932, and 1945. The Hilltop is the student newspaper of Howard University, a historically Black college, located in Washington, D.C. Co-founded in 1924 by Harlem Renaissance writer Zora Neale Hurston and Louis Eugene King, "The Hilltop" is the first and only daily newspaper at a historically Black college or university (HBCU) in the United States.   Wesley Theodore "Moose" Englehorn (January 21, 1890 – September 3, 1993) was an American football player and coach.  Born in Helena, Montana, Englehorn first gained fame as a football player for Spokane High School.  While he was a junior in high school, he was reportedly recruited by Princeton University to come east to play football for the school.  A newspaper account in 1907 reported: "It is expected that Wesley Englehorn, the giant left tackle of the high school team, will also enter the Eastern college.  If this materializes the Spokane high school will be weakened next year by the loss of two of its greatest players.  ... Englehorn is also a strong basket ball player and track athlete."  Englehorn did not enroll at Princeton and instead played for two years on the All Star Pacific Northwest football and basketball teams.  He began his collegiate career at Washington State College.  After playing one year of football at Washington State, Englehorn enrolled at Dartmouth College, where he played two years at the tackle position.  He was elected team captain for the 1913 season, but he was declared ineligible under "the so-called three-year rule" because of his year at Washington State.  Though ineligible to play, Englehorn served as the team's assistant coach in 1913 and was elected class president.  He was selected as a first-team All-American in 1912.  He graduated from Dartmouth in 1914 and worked as a football coach for several years thereafter.  From 1914 to 1916, he was the football coach at Case School of Applied Science in Cleveland, Ohio.  In 1917, he was hired as the line coach and first assistant football coach at Colgate University.  In 1920, he was an assistant coach under Frank Cavanaugh at Boston College.  In 1921, he was hired as the head football coach at Amherst College.  In January 1922, Englehorn announced his retirement from coaching.  Shortly before his death at age 103, Englehorn said, "It's the football I remember best ... the teammates . .  the teamwork."  Prior to his death in 1993, he was living at Stapeley Hall, a home for the elderly in the Germantown section of Philadelphia, Pennsylvania, and was the oldest living All-American football player. Judson Albert "Jud" Timm (August 28, 1906 – December 23, 1994) was a college football player and coach.  A native of Twin Falls, Idaho, he played for Robert Zuppke's Illinois Fighting Illini football teams at the University of Illinois at Urbana-Champaign, where he was a prominent halfback and a member of its 1927 national championship team.  Timm scored in the Michigan game that year; and was an All-Big Ten Conference selection.  Timm served as the head football coach at Pennsylvania Military College—now known as Widener University—from 1930 to 1938 and at Moravian College from 1939 to 1941, compiling a career college football coaching record of 52–43–11.  He was also the head basketball coach at Pennsylvania Military from 1930 to 1936 and again in 1937–38, tallying a mark of 58–54.  Timm was an assistant football coach at Yale University from 1942 to 1944, mentoring the backfield for the Yale Bulldogs football team under head coach Howard Odell.  He was later an assistant football coach and head track and field coach at Princeton University. Burton Aherns Ingwersen (August 29, 1898 – July 17, 1969) was an American football, basketball, and baseball player and coach of football and baseball.  He served as the head football coach at the University of Iowa from 1924 to 1931, compiling a career college football record of 33–27–4.  Ingwersen played football, basketball, and baseball at the University of Illinois and was an assistant football coach at the school in two stints totaling 25 seasons.  He also served as an assistant football coach at Northwestern University and was the head baseball coach there from 1936 to 1939, tallying a mark of 35–51–1. Charles Henderson (born December 18, 1946) is a former American football coach.  He served as the head football coach from 1979 to 1980 at Delaware State College, a historically black college in Dover, Delaware.  He compiled a 6–14-– record as head coach after several seasons as an assistant under head coach Edmund Wyche. Joseph Purzycki (born February 20, 1947) was a college football head coach for Delaware State University and James Madison University between 1981 and 1990.  Purzycki was the first white man to ever be named a head football coach at an historically black college, which occurred when he was elected Delaware State's newest head coach in 1981.  Purzycki was an assistant at the University of Delaware prior to his Delaware State tenure, where he learned the Wing T offense from College Football Hall of Fame coach Tubby Raymond.
Answer: Central State University