William Glossom

William Henry "Rock" Glosson (January 18, 1937 – October 9, 1996) was the seventh head football coach at Mississippi Valley State University in Itta Bena, Mississippi and he held that position for two seasons, from 1968 until 1969. His coaching record at Mississippi Valley State was 2–15.
An alumnus of Texas Southern University, Glosson was married to Rose Walker. He died in 1997.