Tim Park
Lead Pastor

Tim Park grew up in Fountain Valley, California. He earned his B.A. in Sociology from UCLA and his M.Div. from Talbot School of Theology. Tim is passionate about equipping the body of Christ through God's Word and seeing people grow in their faith. Tim and his wife, JoAnn, have two children, Andrew and Amanda. In his free time, Tim enjoys running marathons and finding fun places to eat.



Dale Chamberlain
Pastor of Youth & Administration

Dale grew up in Diamond Bar, California and started attending EFree as a sophomore in high school and came on staff in 2010. He holds a B.A. in Psychology from California State Polytechnic University, Pomona and currently attends Talbot School of Theology in pursuit of an M.Div. He is married to Tamara. In his free time, Dale enjoys drinking coffee, reading, playing guitar, and listening to podcasts.


Luke Pamplin 
Pastor of Discipleship

Luke Pamplin was born in Southern California and grew up in West Covina and Diamond Bar. He earned his B.A. in Biblical Studies from Biola University and is currently working toward an M.Div. at Talbot School of Theology. Luke started attending EFree Diamond Bar in December 2008, where he was closely mentored by their pastoral staff for three years. His first staff role was as the Children's Ministry Intern. Luke is passionate about getting people connected to Jesus and the Church to see their faith grow. If you visit him at home, you might find him working in his vegetable garden.

1linda-maccubbin-2018 Linda MacCubbin
Children's Director

Linda was born and raised in Colorado Springs, Colorado as her home faced Pikes Peak. She attended college in both Colorado and California before becoming a sales representative for Hallmark Cards, Rivera Sunglasses and Motorola. As a stay-at-home mom for 16 years, she was a volunteer in her children's schools, as a Girl Scout leader and in several local churches. At EFree, Linda oversees the children’s ministries as well as congregational assimilation. In her free time, she enjoys spending time with family, studying God’s Word, snow skiing and would like to travel more in the future. Along with her husband Ron, they have two children and one granddaughter.


Kristin Neal
Director of Community Outreach

Kristin Neal was baptized at EFree Church on November 2, 2016. Since then, she has grown in her faith and has allowed the Spirit to move her to the position in Community Outreach. She is married to Steven, and they have 3 amazing children: John, Gavyn, and Riley. Kristin was overjoyed when on February 18, 2018 her husband accepted Christ and was also baptized at EFree Church. She, along with her incredible group of volunteers, continue trying to reach those in the community, for whom we pray wholeheartedly. Her favorite quote is “The world is hugged by the faithful arms of volunteers.”



Waldir Guerrero
Director of Worship Ministry

Waldir grew up in Los Angeles, California. He has a B.A. in Liberal Arts from Cal State Los Angeles, holds two degrees from Pasadena City College and one degree from East Los Angeles College. He has led worship for over 23 years and now here at EFree Diamond Bar since 2009. Waldir is currently overseeing the worship services, worship music teams, and enjoys building God’s people to be passionate worshippers. He enjoys spending time with his family and friends, songwriting, and playing guitar. One of his favorite Bible verses is Isaiah 61:1-3.


Tim Callahan
Junior High Director

Tim grew up near San Jose, California. After moving to Southern California to finish his bachelor's degree at Cal Poly Pomona, he starting attending EFree. It was not long before Tim got involved as the Children's Ministry intern, later transitioning into the Junior High Director role. Tim loves working with students, because junior high is one of the most pivotal times in a person’s life. In his free time, Tim enjoys the outdoors, sports, and traveling. He is also a newlywed. His wife's name is Alexis.


Mike Scaccia 
Facilities Manager

Mike is our Mr. Fix-It. With a smile, he makes sure that everything in our facilities is as it should be. Whether it is room setup, repairs, enhancements, maintenance, or IT support for the technologically disinclined, Mike is always there to help. Mike is married to Amy, and has two children: Phoebe and Caden. 

Griselda Chin
Finance Manager
Griselda grew up in what used to be South-Central Los Angeles and was the first in her family and most of her neighborhood to go to college. She attended Standford. She is married to Kelvin, and they have one son, Samuel. Along with overseeing all our finances, Griselda is also passionate about the Dignified Care group for those who have experienced infertility, miscarriages, and still birth--a group was pivotal in forming.

Gail Laurie
Adminstrative Assistant

Gail was born in Montebello and grew up in Monterey Park, California. After graduating high school, Gail immediately went to work in Los Angeles at Security Pacific Bank in the Security Division. In 1980, she started her own secretarial service called “Surrogate Secretary” and accepted the Head Secretary position from Chevron Oil Field Research Co. in 1982. At EFree, Gail is an administrative assistant insuring a smooth flow of communication from top to bottom. She enjoys seeing God at work in her small group, and Adult Bible Fellowship. In her free time she enjoys traveling, going to the beach and river, and spending time with friends. Gail is married to Stuart and has three adult kids, and two grandchildren. 


Elaine Yee 
Adminstrative Assistant

Elaine is passionate about our church and about bringing excellence to everything we do. She served our church in a number of volunteer opportunities before coming on staff, including serving as our Deaconness of Fellowship. Elaine holds B.S. in Human Resources from California State Polytechnic University, Pomona. She also has a lot of project management experience. Elaine is married to Thomas, and they have three children: Emma, Gavin, and James.


Mark Hopper 
Pastor Emeritus

Pastor Mark Hopper served as the Lead Pastor at EFree Diamond Bar from June 1988 to August 2015. He is a graduate of Dallas Theological Seminary with his Th.M and also holds degrees from Arizona State University and the University of Arizona. If you step foot on our campus, you will without a doubt be greeted with a warm smile and friendly conversation from Pastor Mark. He is gifted with a shepherd’s heart and cares deeply for the needs of our church family. In Mark’s spare time, he enjoys golfing, reading history books and spending time with his family. Along with his wife Jeanne, the Hoppers have four children and seven grandchildren.


Join us Sunday at 

9 & 10:45AM