Executive Director

Steve Yarbrough has enjoyed a highly successful career in education, family law, public policy creation, and organizational leadership. As a passionate proponent of Christian Education, he co-founded ACSTO in 1998 and continues to serve as its executive director.

He has served in the Arizona Legislature since 2003 where he has been Chairman of the Ways & Means Committee, Speaker Pro Tempore, and Chairman of the Senate Finance Committee. He is recognized in Arizona and nationally as a leading advocate for pro-school choice policy innovation.

He and his wife Linda, a longtime Christian school teacher, have three adult sons and eight grandchildren. All of their grandchildren attend Christian schools in Arizona or Tennessee.

Assistant Executive Director

Amy has been serving ACSTO since 2006. She has lived in Arizona since 1985, and she graduated from ASU with a degree in communications. She has been happily married for 15 years and has a daughter who currently attends a local Christian school.

She loves spending time with her family and friends, especially if that includes dessert or Mexican food. Amy supervises projects and staff, manages finances, and assists our donors and parents on the phone.

Marketing Manager

Sally has worked as ACSTO's Marketing Manager for several years and has already been seen far and wide across the state at churches and school events. As an involved parent and educator, she enjoys bringing experience, enthusiasm, and creative solutions to the table for our valued partners.

Media Manager

Tommy has been providing marketing and design for ACSTO since 2012. As a graduate of a private Christian school, and still receiving the support of his teachers to this day, he is passionate about making Christian Education a reality for Arizona families. When not at work, Tommy likes to try foreign foods, drink coffee, daydream, and watching planes at Sky Harbor.

Customer Service Specialist

Amber has been working at ACSTO since March of 2015 along with prior experience during the 13-14 school year. With training and experience in child development, she is eager to help children afford the benefits of a Christian Education through ACSTO. She is born and raised in Arizona and married her childhood sweetheart in May of 2014. In her spare time she loves to bake, play volleyball, and hang out with her little sister.

Lyndsey Henry
Customer Service Specialist

Having worked for ACSTO in the past, Lyndsey is no stranger to Arizona's tax credits, and is excited to be a part of this wonderful program once again. She is also no stranger to private education. After graduating from a private Christian school here in Arizona, Lyndsey earned a degree in elementary education from ASU and then taught 4th grade at a private school for five years. She was born and raised in Arizona, has been married to her high school sweetheart for 11 years, and has three children. Lyndsey enjoys music, especially if she gets to sing or play the harp!

Wendy Rankin
Customer Service Specialist

Wendy is a valuable part of the ACSTO family. She has lived in the valley since 1971, graduated from ASU in 2006 in Graphic Information Technology, is happily married to a wonderful man for 33 years, and has two adult children. Wendy attends Arizona Community Church and serves in their Music Ministries as a vocalist. She has used her computer skills to meet specific needs on three short-term mission trips and hopes for more. In her spare time she loves to crochet and learn about new technology.

Sara Cornell
Customer Service Specialist

Sara began working for ACSTO in 2016. She is an Arizona native, has been married to her husband for eight years, and together they have two boys, Andrew and Joshua. She and her family are members at Apologia, a reformed baptist church, and in her free time, she enjoys reading, shopping, and cooking.

Shelby Smith
Customer Service Specialist

Shelby started at ACSTO in May of 2016 as a Customer Service Specialist. He attended private Christian schools with the help of organizations like ACSTO. In his spare time he enjoys studying Japanese and computer science.

Southern AZ Coordinator

Dr. Tom Askew has been a Christian educator for over forty years, both in the U.S. and overseas. His favorite subjects to teach are English, Latin, and Bible. He offers his expertise on Christian Education through a variety of non-profit, radio, administrative, and publishing roles. Since 2007, he has represented ACSTO to churches and schools in Pinal, Pima, Graham, and Cochise counties.

Maryellen Hawkinson
Central Valley Coordinator

Maryellen has been an ACSTO coordinator for the past 10 years. She is married to Bruce, and they have 2 children and 4 grandchildren. As her schools and churches, or anyone who knows Maryellen, will tell you, her warm, friendly personality is only matched by how passionate she is about Christian Education and desire to help as many people as possible learn about the AZ State Tax Credit and how ACSTO can make it work for them.

East Valley Coordinator

John has been working with staff and students in Christian Schools for many years and is an involved parent at his child’s school as well. As a Coordinator, he looks forward to serving parents and schools to help make Christian Education a reality for them. John enjoys dancing, chess, computers, gaming, fishing, and trying new things when eating out.

Steve Vogel
North Valley Coordinator

Steve is experienced with Arizona tax credits as the Development Officer for School Choice Arizona, and possess the detail orientation necessary to explain both the individual and the corporate tax credits clearly. His desire to see all Arizona children succeed is evidenced in his work and in his family life as a parent and foster parent.

Jeff Weinstein
WELS Church Coordinator

Jeff Weinstein, a member of Grace Lutheran Church of Southern Arizona and a life-long member of the Wisconsin Ev. Lutheran Synod, has joined ACSTO as the WELS/ELS Church Coordinator. He serves as the Elder of Outreach at Grace as well as on the Board of Directors at Arizona Lutheran Academy in Phoenix. Jeff, along with his wife Stephanie and his three children and two grandsons, have attended WELS schools since kindergarten. He enjoys singing in choir, playing basketball, as well as traveling with his wife.

Jamie Dinsmore
School Coordinator

Jamie has been involved with Christian Education since her boys started in preschool. She has served in many different capacities, including teacher, registrar, PTF president, fundraising, and serving on the school board. Jamie and her husband, Chris, currently have 2 boys in high school. They have participated in the tax credit program for over 10 years, and Jamie loves having the opportunity to educate families about how Christian Education can be affordable with tax credits.