CityServe trains, equips, and mobilizes the local church to live out the Gospel of Jesus Christ in its community through compassion.

Board of Directors

Wendell Vinson
Wendell and Lynda Vinson.


In 1983, Wendell and Lynda Vinson became the pastors of a small congregation in need of revitalization in Bakersfield, California. They told the Lord that they would spend their whole lives serving Him in this city if He would allow it. More than three decades have passed and Canyon Hills has become one of the leading multi-site churches in Southern California with campuses throughout Central California from the Sierras to the Pacific Coast. The passion of their hearts has never wavered; their greatest desire is to bring a living Jesus to a dying world.

Wendell is known for initiating conversations and collaboration among pastors, business leaders and influencers to bring about community transformation. He gives generously of his time to invest in young leaders for the fulfillment of the Great Commission. He has developed a culture at Canyon Hills that values moving beyond the walls of the church to take the Gospel of Jesus Christ from the neighborhood to the nations.

Wendell and Lynda have two adult children, Jenifer and her husband Kris and Jeremy and his wife Sarah. They are also the proud grandparents of two grandchildren, Oliver and Kaylyn.

Dave Donaldson

Dave and Kristy Donaldson.

Vice President

Dave has invested his life in inspiring, equipping, and resourcing leaders in more than one hundred countries to bring aid and opportunity to millions of underresourced people. As the former national director for Operation Blessing and co-founder of Convoy of Hope, Dave forged global partnerships with churches, organizations, and businesses to mobilize tens of thousands of volunteers worldwide.

A veteran of Washington, DC, Dave coordinated government briefings between the government and faith-based leaders and served on the C-SAT Council for Substance Abuse and Mental Health Services Association (SAMHSA). He also hosted the first National Summit on Foster Care and Adoption with the US Children’s Bureau and has served on numerous boards including the National Football League (NFL) sanctioned National Courage Awards. He is a former trustee at Vanguard University and an advisor to Missouri State University’s graduate college.

In 2016, Dave retired from Convoy of Hope to co-found CityServe International (CSI). As initiatives of CSI, Dave hosts trips to Israel and spearheads efforts to provide aid and education for refugees in the Middle East. In 2019 Dave and CityServe launched “Neighborhoods to the Nations” to unify churches and organizations around church-based compassion initiatives, and to provide an advocacy office in Washington, DC.

Dave is the author of the bestselling Rock Solid discipleship program and coauthor of Revolution of Compassion and Relentless.

Dave earned his MA from Fuller Theological Seminary. He and his wife, Kristy, reside in California and Washington, DC, and have four adult children.

Don Crabtree
Don Crabtree.

Secretary - Treasurer/CFO

Don Crabtree has owned and operated successful businesses in Kern County for over four decades. Early in his career he served as the Vice President of Western United States Marketing for California Audit Company. He built an accounting firm, Individual Tax Records, which he owned and operated from 1976 until the end of 2010, at which point he directed his attention full time to California Drilling Fluids, a second company he began in 1996 and remains as the president and principal owner.

Don’s legacy will be his generosity to many projects in Bakersfield that impact the lives of children through education and spiritual formation. In addition to serving on the board of CityServe, Don is also a member of the endowment board of Bakersfield Christian High School.

Don is married to Kathleen and together they share two children, eight grandchildren and five great grandchildren. He is an avid outdoorsman and loves to travel the world in search of the best places to fish.

Steve Vinson
Steve and Renee Vinson.


Steven is currently the Executive Pastor at Canyon Hills Assembly of God in Bakersfield, CA. He has 30+ years of ministry experience and was ordained in 2013. Steve and his wife Renee reside in Bakersfield, CA have 4 children and 1 grandchild.

Karl Hargestam
Karl and Jennifer Hargestam.

Executive Director

Karl Hargestam is passionate about empowering the church to reclaim their missional mandate to love thy neighborhood and show the loving-kindness of Jesus from the neighborhood to the nations. Karl leads the CityServe Network team as the Executive Director and manages all operations and personnel. His visionary leadership guides the network and leadership team in growth and strategic partnerships.

In 2010, Karl and his wife Jennifer founded Mission One Eleven, a missionary program that trains and raises up missionaries to fulfill the Great Commission and take the Gospel specifically to unreached and unengaged people groups.

Karl is an author, speaker and life-long global missionary and evangelist. Karl and Jennifer reside in Bakersfield, CA and have 3 children.

Carlos Baldovinos
Carlos Baldovinos.
Robin Mangarin-Scott
Robin Mangarin ScottRobin Mangarin-Scott is the vice president of marketing and communications for Dignity Health's Southern California North Division. She oversees 11 hospitals and on the Central Coast and Central Valley. An active member of the community since her days in television broadcasting, Robin is the recipient of multiple awards and honors, including the State of California's Woman of the Year. Robin has a masters degree from Loyola Chicago in clinical bioethics and healthcare mission leadership. She is the founder and chairperson of Bakersfield's Mayor's Ball which has raised nearly 800k for CityServe in just two years.
Shannon Grove

Senator Grove was born and raised in Kern County. After graduating from high school, Senator Grove served in the United States Army. While stationed in Frankfurt, Germany she witnessed the fall of the Berlin Wall in 1989. Following her service to our nation, she established a staffing company with her sister-in-law called Continental Labor and Staffing Resources. Senator Grove currently serves as the CEO. Prior to her election to the State Senate, Senator Grove was the first woman veteran elected to the California Legislature as she served the 34th Assembly District from 2010 to 2016. Senator Grove was elected to represent the 16th Senate District which includes Kern, Tulare, and San Bernardino counties in November 2018. In January 2019 she was elected Leader of the Senate Republican Caucus. She is the first female veteran and third female to serve in the top leadership post of the Senate Republican Caucus. Senator Grove is an advocate for small business, the developmentally disabled, farmers, and families. She currently lives in Kern County with her husband, Rick. They are the proud parents of five children and six grandchildren.

Jack Pandol

Photo of Jack Pandol.

Jack Pandol is the founder of the company Grapery dedicated to producing the finest table grapes in the world in Kern and Tulare counties. Best-known for their “Cotton Candy” grapes, their line includes other delicious varieties such as Gum Drops, Tear Drops, Moon Drops, and their Flavor Promise line. He is also founding partner of International Fruit Genetics, the source of our unique and flavorful varieties.

Jack comes from the third generation of successful Central Valley farmers and grew up working in the fields of his family’s diversified agri-business, Pandol Brothers. He earned a Bachelor’s degree in Plant Science at the University of California Davis. He spent twenty years at Pandol Brothers, honing his skill in his family’s vineyards. Through this journey, he pioneered and developed new growing methods such as drip irrigation, unique fertilization techniques, and trellising systems that expose the grapes to the ultimate balance of sunlight and air movement.

He briefly left Pandol Brothers for a few years, accepting the role of Undersecretary for the California Environmental Protection Agency under former Governor Pete Wilson. A few years later, he returned to the grape vineyards and founded Grapery, becoming a leading innovator in the table grape industry and growing some of the most flavorful grapes in the world.

Jack Pandol has 26 years of experience as an advisor and board member of multiple organizations and committees in the government, education, religious, and agricultural sectors.