William serves as Youth Director at Memorial, overseeing youth Sunday School, Wednesday night Bible study, summer camps, and mission trips. He grew up in Marshall County, where Jesus saved him and called him into ministry as a teenager at Briensburg Baptist Church. He later earned a degree in Applied Psychology and Counseling from Mid-Continent Bible College. His desire is to create opportunities for students to know Christ, grow in their faith, and serve others. William and his wife, Laura, have three boys, and the Castleberry family enjoys marching band and the outdoors. His favorite book of the Bible is Genesis, and he looks forward with great anticipation to the day when Jesus returns and takes His people home to His kingdom.