
Nathaniel W. Coffman, Ed.D.
Head of School
“Our students thrive in college and as adults because they are highly skilled, self-motivated learners who know how to succeed both individually and as a part of diverse teams. They know how to take action, build relationships, collaborate and communicate.”
- Direct Phone: 262-752-2501
- Email: [email protected]
Division Heads
Sophie Michaud
Head of Upper School
“I was drawn to Prairie because the school was founded by a woman with a vision. The school’s creativity drew me in as well. It’s in the mission. It’s a fabric of Prairie’s being.”
- Direct Phone: 262-752-2626
- Email: [email protected]
Kathy Boero
Head of Middle School & Associate Head of School
“I want to create an environment that provides a strong foundation for skill and social development and supports children to soar and achieve great things!” (View Profile)
- Direct Phone: 262-752-2575
- Email: [email protected]
Susan Holum
Head of Primary School
- Direct Phone: 262-752-2551
- Email: [email protected]

Aliya Pitts
Assistant Head of School for Community Relations
- Direct Phone: 262-752-2520
- Email: [email protected]

Steve Joost
Assistant Head of School for Finance & Operations/C.F.O.
“Prairie prepares students to be leaders and excel at what interests them.”
- Direct Phone: 262-752-2511
- Email: [email protected]

Lisa Koleske
SHRM-CP, Director of Human Resources
“I value our hard-working faculty who bring their passion, expertise, inspiration and collaboration each day to the classroom for the students and the Prairie community.”
- Direct Phone: 262-752-2515
- Email: [email protected]