Kelleher graduated from Hilliard Darby High School in 2010 where she ran cross country and track. She was junior year MVP (2008-09), and a state qualifier in track (2009-10).
Kelleher was also involved in National Honor Society.
Shannon is the daughter of Amanda and Todd Kelleher. At Wittenberg, she has been All-conference, and was rookie of the year her freshman season.
Kelleher plans to be a science writer in the future.