He performs with band Double Barrel Darrel, a band based in Goshen, Indiana, which has released albums including Nashville Made in China (2001), Geophagy (2004), and Overland Underground (2007). Gerber earned a B.A. in bible and religion and a B.S.N. (Bachelor of Science in Nursing) from Goshen College. In addition to working as a nurse, he has worked as a guitar builder and carpenter.