Board Members

Josh Keller

Chairman of the Board

Josh Keller joined the Board in December of 2020. He has been a Sales Executive in the health insurance industry for over 15 years. He has 3 children who have attended school at Cornerstone for the last 10 years. His lovely wife, Melissa, is also active in the Cornerstone community as the K-12th grade Art teacher. Josh enjoys regular exercise, playing guitar, and coaching soccer in his spare time. More importantly, he loves and appreciates the company of his family. The Kellers have been members of Veritas Church in Roseville for over 13 years. Josh wants to live fully in the joy of Christ and share that joy with others.


Douglas Broomell

Board Member

Douglas and his family have been a part of the Cornerstone family since 2005. Douglas joined the CCS Executive Board in 2011. He obtained his law license in 1995. Douglas and his wife, Colleen, are self-employed, practicing attorneys with four children attending Cornerstone.


Ray Greenhouse

Board Member

Ray and his family have been a part of Cornerstone Christian School (CCS) since 1997, and he joined the CCS Executive Board in 2005. He holds a Bachelor’s degree in Business Administration from California State University, Fresno, and is presently the Director over the Information Technology Customer Services and Support organization for the California State Teachers’ Retirement System. He enjoys reading and sports but is mostly interested in fostering Christian leadership among Christian men, young and old. Ray and his wife Susie have four children and reside in Rocklin.


Steven Meister

Board Member

Steve Meister joined the Executive Board in July of 2022. A pastor with 15 years of experience, Steve serves Immanuel Baptist Church in preaching, theological education, and leadership training. A Christian since 1994, Steve earned his M.Div. from The Master’s Seminary and worked for Children’s Hunger Fund, where he developed a curriculum to train church leaders in a biblical theology of compassion ministry.

Along with pastoral ministry, Steve also serves as a board member of Bible Translation Fellowship.  He and his wife Jenn have been married for 20 years and have 4 children that have attended CCS since 2019.


Daniel Sonke

Board Member

Dr. Dan Sonke grew up in a Christian home and church near Modesto, California. His family moved to his grandparents’ almond farm in elementary school. After college, Dan went to work for a Christian mission organization working in agriculture. During this time, through the faithful preaching of a local church, he found himself embracing the teaching of the doctrines of grace. Shortly thereafter, Dan met his wife Mary Lee through a mutual friend who played “matchmaker.” They now have four children who have attended Cornerstone, with the oldest having graduated in 2019. Dan has a doctorate in agriculture science and is an expert in environmental issues related to agriculture. In his spare time, Dan likes gardening, travel, and reading.