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OFFICE STAFF
Martha Tiemens
Martha Tiemens is in her fifth year at Illiana as receptionist.   In addition to those duties, she maintains the Master Calendar, and the data base. She takes care of office supplies, posts daily news bulletins, & provides alumni with information. She assists in the coordination of Open House and provides secretarial support to faculty & administrators. She and her husband Ron are both graduates of Illiana, and are members of Cottage Grove Christian Reformed Church, in South Holland.
Bonnie Trepton

Bonnie Trepton is currently in her fifth year working in the office at Illiana as an Administrative Assistant.  Her primary function is to assist the principal and work closely with the school board.  She prepares and submits several reports required by the State of Illinois, prepares and sends out the Community Activities Calendar on a bi-monthly basis, and works closely with families during the admissions process.  In the spring she is involved in preparations for Grandparents Day, Awards Day, and Graduation.  Bonnie, an Illiana alum, is married to Rick Trepton and they live in Lansing with their two children.  They are members of Bethel Christian Reformed Church.

Cheryl Schaap
Cheryl Schaap has served Illiana for 20 years in the Student Services Office.  Serving as Registrar she coordinates records for report cards, transcripts, & vouchers.   Among her many duties, she is an assistant to the athletic directors and organizes the collection and recording of student organization funds. She assists students in their college application process.  She is the coordinator of the online grade system Edline. Cheryl is married to Jay Schaap, an Illiana alum. They are members of Faith Church in Dyer.
Kathy VanZyl
Kathy Van Zyl has been working at Illiana for thirteen years. She is presently responsible for the tuition payments and mailings that you receive from the office. She also works in the area of fund raising and receives your gifts for the various funds such as Memorial gifts, Illiana Drive gifts, Foundation gifts and other designated gifts. She is married to Jim Van Zyl who is an Illiana alum.  They are members of Crossroads Christian Reformed Church.