Staff Sergeant William Calohan joined the Hellcats in August of 2005. In 2002 he received his Bachelor of Music Education from James Madison University in Harrisonburg, Virginia, where he studied with C. William Rice, Dr. Todd Johnson and Dr. Michael Overman. He completed his Master of Percussion Performance at the University of Minnesota in May of 2005. His teachers there were Fernando Meza and Earl Yowell. As a graduate student, Staff Sergeant Calohan taught percussion lessons and the percussion techniques course for undergraduate music education majors. Staff Sergeant Calohan has also attended the Leigh Howard Stevens summer marimba seminar, Bob Becker Ragtime Institute, and performed at PASIC 2004 with Rolando Morales-Matos. He was the winner of the 2001 Virginia Music Teachers Association concerto competition. Staff Sergeant Calohan has instructed and arranged music for high school marching bands, worked as a freelance percussionist in Virginia, Minnesota and New York, and enjoys arranging and composing original music.