Question: Where did the first openly gay football player drafted in the NFL play college football?

Context paragraphs:
Christopher Voth: Christopher Voth (born (1990--)27 1990 ) is a Canadian male volleyball player.  He is part of the Canada men's national volleyball team.  On club level he played left side for Abiant Lycurgus.  Voth is openly gay and came out as the first openly gay national athlete from Canada.

Ryan O'Callaghan: Ryan Thomas O'Callaghan (born July 19, 1983) is a former American football offensive tackle.  He played college football at California and was drafted by the New England Patriots in the fifth round of the 2006 NFL Draft.  He also played for the Kansas City Chiefs.  O'Callaghan is one of only a few openly gay former NFL players.

Kathleen McGuire: Dr. Kathleen Alison McGuire (born in 1965 in Melbourne) is a choral and orchestral conductor, arranger, composer, music educator, vocalist and multi-instrumentalist.  Known also for her work with social justice and human rights organizations, from 2000 to 2010 she served as the first female artistic director and conductor of the San Francisco Gay Men's Chorus – the world's first openly gay choral organization – and in 2010 she established Singers of the Street: a choir of people affected by homelessness in San Francisco.  She became a US citizen in 2011 and in 2013 returned to Australia to serve as director of music at Queen's College (University of Melbourne) and co-artistic director of the School of Hard Knocks.  In 2006 she was a grand marshal in the San Francisco LGBT Pride Parade.  Her contributions have officially been recognized by the California Senate and State Assembly, and "Kathleen McGuire Day" was designated twice in her honor by San Francisco mayors Gavin Newsom (22 April 2010) and Edwin Lee (6 April 2013).

National Gay and Lesbian Sports Hall of Fame: The National Gay and Lesbian Sports Hall of Fame is a hall of fame established in 2013 to honor LGBT and allied personalities and organizations "whose achievements and efforts have enhanced sports and athletics for the gay and lesbian community".  It was established shortly after Jason Collins became the first openly gay NBA player.  It is located on the grounds of Center on Halsted in Chicago, Illinois.

Homosexuality in American football: Few American football players have come out as gay.  Six former National Football League (NFL) players have come out publicly after they retired.  There has never been anyone who has been publicly out while playing in the NFL.  Michael Sam was selected by the St. Louis Rams in 2014 NFL Draft, and became the first publicly gay player drafted in the league, but was released before the start of the regular season.  He became the first publicly gay player to play in the Canadian Football League in August 2015.  In college football, Division III player Conner Mertens came out as bisexual in January 2014, becoming the first active college football player at any level to publicly come out.  In August 2014, Arizona State player Chip Sarafin became the first publicly out active Division I player.

Jay Berwanger: John Jacob "Jay" Berwanger (March 19, 1914 – June 26, 2002) was an American college football player and referee.  He was the first winner of the Downtown Athletic Club Trophy in 1935 (the following year the award was renamed the Heisman Trophy); the trophy is awarded annually to the nation's most outstanding college football player.  Berwanger was a star halfback for the Chicago Maroons football team of the University of Chicago, where he was known as the "one man football team".  In 1936, Berwanger became the first player drafted into the National Football League (NFL) in its inaugural 1936 NFL Draft, though he did not play professionally.

Jack Burkman: Jack Burkman is an American lobbyist.  He is the president of the lobbying firm Burkman Associates, LLC.  Burkman drew significant media attention for organizing a protest against the Dallas Cowboys NFL football team after it signed Michael Sam, an openly gay football player to its practice squad.  He is the host of the radio show "Behind the Curtain" on Radio America.

My-King Johnson: My-King Johnson (born June 7, 2004) is an American college football defensive end for the Arizona Wildcats of the University of Arizona.  He is openly gay, and he and Scott Frantz are two of the first openly gay players in the NCAA Division I Football Bowl Subdivision.  However, in 2017 Johnson redshirted while Frantz became the first openly gay college football player to play in a game for a NCAA Division I Football Bowl Subdivision school.

Robbie Rogers: Robert Hampton "Robbie" Rogers III (born May 12, 1987) is an American professional soccer player who plays for LA Galaxy in Major League Soccer.  He plays as a winger and as a left back.  Rogers has also represented the United States men's national soccer team.  In February 2013, Rogers came out as gay, becoming the second male soccer player in Britain to do so after Justin Fashanu in 1990.  On May 26, 2013, he became the first openly gay man to compete in a top North American professional sports league when he played his first match for the Galaxy.

Michael Sam: Michael Alan Sam, Jr. (born January 7, 1990) is a former American football defensive end.  He played college football for the University of Missouri and was drafted by the St. Louis Rams of the National Football League (NFL) in the seventh round of the 2014 NFL draft.

Supporting paragraphs: Homosexuality in American football Michael Sam
Answer: University of Missouri