D20 Main Directory
D20 All Staff Directory: District Office & All Schools
John Gustafson
Principal
Early Childhood Center, Greenbrook Elementary School
Administration
School:
(630) 894-4411
Kristine Stalzer
Assistant Principal
Waterbury Elementary School
Administration
School:
(630) 894-4203
Becky Cortesi-Caruso
Director of Student Services
District Office
Administration
School:
(630) 894-4010
Wendy Flaherty
Director of Operations & Treasurer
District Office
Administration
School:
(630) 894-4608
Dr. Carrie Stange
Director of Teaching and Learning
District Office
Administration
School:
(630) 894-4467
Dan Abel
Teacher - Grade 3, Room 205
Waterbury Elementary School
School Staff
School:
(630) 894-4270
