Garrison is a Park Hill graduate of 2007 and went on to play in college at William Jewell for two seasons before transferring to Park University. At Park University he was a three year starter. He was a career .315 hitter as well as a solid defensive catcher. He earned Honorable Mention All-Conference as a Junior and First Team All-Conference as a Senior.
Garrison played in the Ban Johnson summer league from 2009-2011. He was a Ban Johnson All-Star his last two seasons. He led UMB bank to two championships appearances in three years.
Garrison currently resides in Kansas City, Missouri with his wife Anna and two dogs Chief and Charlee. Garrison holds a degree in Mathematics from Park University and is working on obtaining a Master’s Degree in the future.