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Advancement Staff

Nathan Harris, Ph.D.

Vice President of Advancement

B.A. in Youth Ministry, Malone University; M.Div., ThM in Pedagogy, and Ph.D. in Biblical Studies: New Testament, Midwestern Baptist Theological Seminary. As the Vice President of Advancement, Nathan leads all development, annual giving, and stewardship initiatives at Grace College and Seminary. Nathan is passionate about Christian philanthropy and communicating how the gospel of Jesus Christ transforms the way Christians view stewardship and generosity. Prior to serving at Grace College and Seminary, Nathan served at Cedarville University (Cedarville, OH) and Midwestern Baptist Theological Seminary (Kansas City, MO). Nathan has over a decade of experience in Christian higher education and local church ministry. Above all, his greatest joy is his family: his wife, Kelsey; two boys, Noah and Jude; and beloved goldendoodle, Charlie.
Phone: (574) 372-5100, ext. 6121
Executive Director of Advancement Operations

Kelsi Griffith, BS ‘11, MS ‘16

Director of Advancement

Kelsi joined the Advancement team in August 2014. She is a 2011 graduate of Grace College, with a bachelor’s in business administration and counseling and also holds a Master’s degree in Nonprofit Management from Grace. Prior to joining the Advancement office, Kelsi worked for three years at the Kosciusko County Community Foundation. Kelsi’s role is to oversee the operations of the Advancement team in relation to the database, donor tracking, donor stewardship and legacy giving.
Phone: (866) 448-3472, ext. 6128
Bob Jackson Director of Development

Bob Jackson, BS ‘91, MS ‘19

Director of Alumni Engagement

Bob is a 1991 graduate of Grace College, having majored in Communications with a business minor. He joined the Advancement team in September 2014. Before coming to Grace, Bob worked in insurance and owned a catering business. He is responsible for building relationships with alumni and friends of Grace, primarily from Indiana to the west coast. In his spare time, Bob enjoys singing and ministering with the “No Name Quartet.” He resides in Warsaw with his wife, Katie, and four children: Ellie, Joe, Maryking and Ben.
Phone: (574) 372-5100, ext. 6129

John Sloat, BS ‘09, MDiv ‘12

Director of Development

John is a 2009 graduate from Grace College and a 2012 graduate from Grace Theological Seminary. He received his Bachelor’s in youth ministry and his Master of Divinity in exegetical studies. He also received his Master of Theology from Southern Seminary in 2014. He began working at Grace College and Seminary in 2014, first as a Resident Director, and then in 2018 transitioned to the Seminary where he was the Director of the Accelerated Program. John resides in Columbia City with his wife Andrea.
Phone: (574) 372-5100, ext. 6138

Carrie Vineyard

Director of Development

Carrie holds a B.A. in Communication with a concentration in Public Relations from Purdue University. After graduating in 2005 her career path began in radio and newspaper, and later evolved into a Chief Marketing Officer role where she developed multiple businesses’ brands in both the corporate and non-profit sectors. She attends North Manchester First Brethren Church where she has served on the worship and outreach teams. She resides in North Manchester with her husband Ben, son Owen, and daughter Aria.
Phone: 574.372.5100 ext. 6119
Collette Olson Advancement Assistant

Collette Olson, BS ‘90

Advancement Assistant

Collette, a 1990 graduate of Grace College, majored in business administration with a minor in behavioral science and was in the Chamber Singers her junior and senior years. A native of Warsaw IN, Collette is a member of Winona Lake Grace Brethren Church where she served in AWANA Cubbies for over 20 years, and is involved in Women of Grace for Missions Europe Circle, SPLASH children's ministry, and worship choir. She has been an active member of Grace Ladies' Organization (GLO) for 20+ years. In May 2019, she was honored for 25 years of service to Grace where she was hired in 1994 as an admissions counselor for Indiana and soon transitioned to assistant director and then to director in 2000. From 2004-2014, she served as human resources generalist and as payroll coordinator. In September 2014, Collette accepted the opportunity to serve in Grace Alumni Engagement and then transitioned to the advancement office in June 2016 where she serves as advancement assistant and supervises the campus switchboard services. Collette lives in Winona Lake with her husband, Ken, and their daughters, Sophie and Julianne.
Phone: (574) 372-5100, ext. 6122
Mary Polston Gift Receipting & Data Specialist

Mary Polston, BA ‘78

Gift Receipting & Data Specialist

Mary Polston (McNally ‘78) joined the Advancement team in 2005. Prior to joining Advancement, she worked in Academic Affairs at Grace for four years. Mary resides in Winona Lake.
Phone: (574) 372-5100, ext. 6123
Ashlee Eda Research Coordinator

Ashlee Eda, BS '16, MS '17

Research Coordinator

Ashlee is a 2016 graduate of Grace College, with a bachelor's in educational ministries and biblical studies. She also holds a Master's degree in Nonprofit Management from Grace. In 2013, during her undergrad, Ashlee first joined Advancement as a switchboard operator. She continued working with the Advancement team, moving from switchboard to data entry to research coordinator, until she graduated with her bachelor's in May 2016. The tools, skills, and mentors she gained from working with the Advancement team, at Grace, started her on her career path in development and nonprofits. After graduating, she returned to her hometown and completed her Master's online. In December 2016, she joined Open Doors, a homeless shelter in Norwalk, CT, as the Fund Development and Database Coordinator. She transformed the donor database by adding researched information and developing simple ways for the whole team to access the information. Ashlee and her husband Sam were married in 2017 and welcomed their son, Hezekiah in 2019. Soon after, in February 2020, Ashlee left Open Doors. In September 2021, Ashlee accepted the opportunity to return to Grace College as the Research Coordinator in Advancement. Ashlee, Sam, and Hezekiah currently reside in Connecticut.