Lake Tulloch Bible Church


"Be the Church"


Michael Avecilla
Security / Children Ministries

Mike has been with LTBC for over 23 years (9 in Children’s Ministries).  He served for over 26 years as a Correctional Officer with the Department of Corrections and later, was Head Baseball Coach for Bret Harte High School in Angels Camp.  He currently oversees the church’s Security and Children’s Ministries.  Mike and his wife Angela have been married over 25 years and have four grown children.

Joseph Engler

Joe and his wife, Ginny have been residents of Copperopolis for twenty years and members of Lake Tulloch Bible Church since 2016. Joe spent thirty five years as a CPA working for several large companies. He has also held Treasurer positions in the past at Castlewood Country Club, and Saddle Creek Men's Club in Copperopolis.

Kevin Gause
Visitation Ministry

Kevin Gause has been a member of LTBC since 1992.  He and his wife Leslie have been married for 31 years and have four children. In addition to being a local business owner, Kevin oversees our Visitation Ministry and also serves with our Security and Maintenance Teams.

Mark L. Holz
Church Administrator

Mark, a fifth generation Northern Californian, is a retired marketing executive who lives in Copperopolis with his wife Kathy.  They have two adult sons, Taylor and Jordan.  Mark is the Church Adminstrator. Mark provides services to the church including, but not limited to, managing and coordinating church operations, activities & communications.

Toby Will
Teaching Pastor

Pastor Toby, a former Stockton Police Officer, has walked with and served the Lord Jesus faithfully for 24 years.  His passion for Jesus has led him to many teaching and preaching roles at numerous churches in Modesto, Livermore and Calvary Chapel Bible College in Ensenada, Mexico where he led Bible Studies for 15 years. He now lives in Copperopolis with his wife of 34 years, Belle, and enjoys spending time with his two sons and four grandchildren.

DeDe Mustill
Church Secretary 

DeDe is a registered nurse. As Director of Health Ministry, she works in conjunction with the health ministry team to address the specific needs of the church family and enjoys helping people develop healthy lifestyle choices.  DeDe also volunteers at Foothill Pregnancy Center in Sonora to promote the sanctity of life.  In her free time she enjoys spending time with family and friends.

In Memoriam

Ted Mustill      1947-2023
Founding Pastor

Pastor Ted and his wife DeDe moved to Copperopolis in 1991 and soon afterwards begain a home bible study that over time grew to become Lake Tulloch Bible Church.  Pastor Ted was known for his love of and full trust in Jesus. He served faithfully until he left this world to be with the Lord in January of 2023.  He is missed very much.