Parker spent his freshman season at Hendrix College, a Division III program located in Conway, Ark., playing for Coach Dan Priest. Parker saw limited time as a freshman, logging just 23 minutes of action over seven contests, but grabbed six rebounds in that stretch.
He spent his senior year at Van Buren High School in Fort Smith playing for Coach Randy Loyd. Parker averaged 12 points and nine rebounds per game in his only year at the school, earning first-team 7A Central Conference honors.
In all, he played three years of basketball, as he played at Southside High School in Fort Smith during his sophomore and junior seasons.
Parker also performed well in the classroom, earning National Honor Society honors and graduating in the top 40 of his class.
Marshall is the son of Kyle and Renee Parker and was born on April 3, 1991. He has one brother, Christian. Parker is a pre-medicine major at Nebraska.