Meet the Staff

Marie Grotte

Administrative Assistant

Marie moved to Kansas City from Minneapolis. After working in the marketplace for 10 years, she began working for Bob’s ministry at Oasis House in 2000. She manages the office and helps coordinate the details for Bob’s ministry trips and assists with publishing his books. She has a heart for missions, intercessory worship and prayer and enjoys a good cup of coffee with friends and great music.

Tracey Sliker

Part-time Staff 

Tracey Sliker, her husband David and four children have lived in Kansas City since 2002. Tracey comes to Oasis House with many years of career and ministry experience. As of 2016 she joined the Oasis House team in Order Fulfillment. She and her husband are also leaders with the International House of Prayer (IHOPKC) staff where they have a passion to disciple the next generation. She leads the Moms Ministry at IHOPKC and loves to be an intercessor. She and her husband have been friends with "Pastor Bob" and Marci Sorge since 1996 when David was hired as the youth pastor at Zion Fellowship in Canandaigua, NY.