Board of Directors

Warren Nunn

Warren Nunn

Warren is the President and CEO of Security Bancorp, the holding company for Security Bank. Warren has spent his life in banking starting his career at Union Planters National Bank in Memphis before returning to Halls in 1972.  He has been on the Security Bank Board of Directors since 1978. He has served on boards and various committees of The University of Memphis, Dyersburg State Community College, Union University and the Baptist Hospital System. He was recently elected to the Board of the Federal Reserve Bank of Memphis where he will serve a three year term. He has overseen the tremendous growth of the organization during his time with the bank. Warren is also co-owner of Tennessee Tractor, which owns nine John Deere dealerships and employs 220 people in nine counties in West Tennessee. Warren is a graduate of the University of Memphis. He and his wife Eleanor live in Halls and have two sons and 6 grandchildren.


David Hayes

David Hayes

David joined Security Bank in 1991 after spending 25 years with Union Planters National Bank in Memphis. He is very active in all aspects of the community in Dyersburg and nationwide with the Independent Community Bankers Association. He served as Chairman of the ICBA for 2005- 2006. He has been a valuable resource in making Community Banks concerns heard nationwide. He is responsible for the operations and technology planning for the Holding Company in addition to serving as President of Security Bank. David also serves on the boards of Security Bank, Gates Banking and Trust Company, The Bank of Jackson and Patriot Bank. David attended the University of Memphis and the Stonier Graduate School of Banking. He and his wife Sara live in Dyersburg and have 2 children and 2 grandchildren.


Dotty Jones

Dotty Jones

Dotty has a long, successful history in the banking industry.  She came to Security Bank in 1995 from Union Planters.  She is currently the Executive Vice President and CAO of Security Bank, and has been on the Board of Directors since 1995.  She is heavily involved in the Gibson County community.  She serves on the Trenton Industrial Board as Secretary, Gibson General Healthcare Board, and the Trenton Special School District Board among many other community activities.  She and her late husband Billy C Jones have 3 children and 4 grandchildren.  She is a very active member of First Baptist Church of Trenton.



Stoy Permenter

Stoy Permenter

Stoy began his tenure on the Board of Directors in 1980.  Stoy, now retired, has been in vegetable farming for over 50 years.  Considered one of Dyer County’s premiere farmers, Stoy has worked hard over the decades to ensure the people of Dyer County not only are fed by his produce but are also educated on how vegetables are grown.  He and his wife Doris attend Finley Methodist Church.  They have 2 children and 4 grandchildren.


Ellen Moore

Ellen Moore

Ellen has been an active member on the Board of Directors since 2000.  She is employed in home and has dedicated her life to improving the community.  She won the Dyersburg/Dyer County Woman of the Year due to her efforts in the community.  She has been on the Dyersburg City Beautiful Commission for over 25 years and is currently serving as president.  She has served on boards such as the Habitat for Humanity, YMCA, American Heart Association, and United Way.  She and her husband Fred have two daughters and attend First United Methodist Church in Dyersburg.


Bill Adcock

Bill Adcock

 Bill came onto the Board of Directors in 1995.  He owned All-Wear Mfg, Troy Mfg. and Lonoke Mfg. Companies with over 900 employees and manufactured blue Jeans.  He was named "Outstanding Businessman of the Year" in 1981 for his contributions to the community and business world, but also to the philantropic world.  Once selling All-Wear and related plants to Wrangler Jeans, he became even more involved with Dyersburg State Community College.  He served as Chairman of the DSCC Foundation Board from 2000-2006 and was honored with the prestigious Regents Leadership Award of Excellence in Philantropy and the Pinnacle Award, Dyersburg State Community College's highest honor.  He and his wife are members of Newbern First Baptist Church where he serves as Deacon, Trustee and Sunday school teacher.  They have three children, six grandchildren and two great grandchildren.


J C Castellaw

J C Castellaw

J C joined the Security Bank Board of Directors in 1998.  JC was the President of CaRe Petroleum until the late 1990s.  He then retired and has been an avid golfer in his spare time.  He and CaRe Petroleum are contributors to the charitable organizations around Dyer County through time and funding.  He and his wife Charlotte have three children and 4 grandchildren.  They are members of First Baptist Church of Dyersburg.


Patrick Heckethorn

Patrick Heckethorn

Patrick is the President of Heckethorn Off Road Products (Rough Country).  He has been serving on the Security Bank Board of Directors for 16 years.  He and his wife Amy are dedicated citizens of Dyer County that care about the community and do all they can to improve it.  They have four children and are members of First United Methodist Church of Dyersburg.


Donald Hogue

Donald Hogue

Donald is the Secretary/ Treasurer of Security Bancorp and President of the Bank of Halls. He also serves on the boards of the Bank of Halls, Bank of Crockett, Gates Banking and Trust Company and Security Bank. Donald started with the Bank of Halls in 1962 and worked at the bank for 5 years before leaving to become a bank examiner for the Tennessee Department of Financial Institutions in 1968. He worked in that capacity for nine years before returning to the bank in 1977. Donald attended Union University and is a graduate of the School for Bank Administration at the University of Wisconsin. He and his wife Patty live in Halls and have two children and 6 grandchildren.


Nick Nunn

Nick Nunn

Nick started his career in 1993 in the Fixed Income Division of Morgan Keegan in Memphis. He was a Senior Vice President working as a broker before leaving to join Security Bancorp in 2005. He serves on the Board of Directors for all six banks associated with Security Bancorp.  Nick manages the investment portfolio and funds management duties for all six banks in the organization. He has also been Treasurer of United Telephone Company based in Chapel Hill, Tennessee.  Nick also serves as a Board Member of Advance Memphis. Nick is a graduate of Auburn University. He and his wife Kara live in Memphis and have 3 children and are members of Second Presbyterian Church.


Chris Nunn

Chris Nunn

Chris has been on the Security Bank Board since 2002.  Chris joined the organization after auditing financial institutions for KPMG in Memphis.  He is the Chief Financial Officer for Security Bancorp where he is responsible for financial analysis and reporting for the holding company and its subsidiary banks.  He serves on the Board of Directors for all of our affiliated banks.  He also serves on the Board of Directors for the Tennessee Bankers Association and the Independent Community Bankers of America.  Chris is a graduate of Rhodes College where he is an adjunct professor in the Department of Commerce and Business.  He and his wife Kim live in Memphis and have 3 children.


Jennifer Nunley

Jennifer Nunley

Jennifer, Executive Vice President of Security Bank and head cashier, joined the Board of Directors in January of 2011.  She has held numerous positions in her 25 years at Security Bank.  She was previously Senior Vice President of Operations and Cashier of Security Bank from 2007-2009, after serving as Vice President of Operations from 2001 - 2007.  Prior to 2001, she served as Operations Officer of Cash Management for a number of years.  Jennifer also serves as Operations Support Manager of Bank of Halls, Halls, Tennessee; Bank of Crockett, Bells, Tennessee; Gates Bank and Trust, Gates, Tennessee; The Bank of Jackson, Jackson, Tennessee; and Patriot Bank, Millington, Tennessee.  Her education background includes Dyersburg State Community College, Union University, and Barret School of Banking.  Active in community affairs, she is currently the Security Bank Christmas Angel Coordinator.  Jennifer has served on the United Way – Dyer County Funds Allocation Committee, Security Bank’s Relay for Life, Chimes for Charity, and attends, First Baptist Church, Dyersburg, TN.  She is married to Steve who works for the Trenton Special School District Central Office.


Bill Reffert

Bill Reffert

Bill joined the Board in January, 2014.  He became President & CEO of ERMCO, a
leading producer of distribution transformers for the electric utility industry,
in 2003. Bill serves on Boards of the Chamber of Commerce, the DSCC Foundation
and the Tennessee Rehabilitation Center.  He holds an Engineering degree from the General Motors Institute and an MBA from Cleveland State University.  Bill and his wife Sheila, whose combined family consists of two daughters, a son and five grandchildren, reside in Dyersburg, where they attend First Baptist Church.


Ron Switzer

 Ron Switzer

Ron became a part of the Security Bank Board of Directors in 2014. 
Ron has been an insurance broker for 37 years and with
Bradshaw and Company Insurors since 1985. He has served on Advisory Boards for
Grange Mutual Insurance Company, Aetna Insurance Company, and Blue Cross Blue Shield of Tennessee. He currently serves on the Board of Directors for St.
John's Community Services based in Washington D.C. Through the years, Ron has been president of Dyersburg Association of Life Underwriters, Dyersburg Jaycees, Dyersburg Golf Association, Dyersburg Dyer County Homecoming BBQ, Dyersburg Country Club, and numerous booster clubs.  He is a graduate of Union University. He and his wife Penny have two daughters and one grandchild. They attend First United Methodist Church.