Judge Lewellen was involved in many community organizations, most notably as Founding Director of both the PCPA Foundation and Solvang Festival Theatre. He also was a Founding Director of The Community Bank of Santa Maria and was a long-time Director of Contract Freighters, Inc. He had three sons, Mark, Michael and David with his former wife Judy Guder. He was married to Ann Foxworthy Lewellen from 2004 until his death.
