Administrative Office


Principal: Jon Guillaume


Jon Guillaume became principal in 2014, following eleven years as assistant principal. Jon earned a Doctorate Degree in Education Leadership from Concordia University.  Additionally, he earned a  Master of Science Degree in Educational Administration from Northern Illinois University and Bachelor of Science degree from Taylor University. 

After studying mathematics and secondary education at Taylor Uniiversity, he accepted a position teaching mathematics at Niles North High School in Skokie. After two years at Niles North, he accepted a position teaching math at Libertyville High School.  In 1999, Jon became the Mathematics Department Supervisor for Libertyville High School and then for Vernon Hills High School when it opened its doors. He continued as department supervisor, math teacher and basketball coach until he became the assistant principal in 2003.  Upon the retirement of Ellen Cwick in 2014, Jon became Vernon Hills High School's third building principal.


Assistant Principal: Jean Aucutt


Jean Aucutt has been the Assistant Principal for Student Development since August, 2005. Her responsibilities include supervision of the Learning Support Teams, the day-to-day operation of the school, special programs, and teacher evaluations.

Jean’s entire career has been with District 128.  She completed her undergraduate degree from Illinois State University in 1981, with a major in business education. In the fall of that year she accepted a position teaching business at Libertyville High School, and in 1994 she became a student facilitator (dean/counselor) at LHS.  In 1999, when the Vernon Hills campus opened, Jean came to VHHS as a counselor.  Other positions she has held while at VHHS include department chair for Department One and Dean of Students.

Jean received her Master’s in Business Education from Northern Illinois University in 1986, and her Type 75 Certificate in 1991, also from NIU.  

Assistant Principal: Joseph O'Brien


Joe O’Brien was named Assistant Principal for Curriculum and Instruction at Vernon Hills High School beginning with the 2014-2015 school year.  His responsibilities include the coordination of programs and services related to curriculum and instruction, the coordination of student and parent programs, and the evaluation of teachers.

Joe has been with District 128 since 2000.  He spent the past five years at Libertyville High School as the Social Studies Department Chair.  Prior to that he was a teacher in the Vernon Hills High School Social Studies Department for nine years.  The first two years of his teaching career were at Macomb High School in Macomb, IL.  

Joe’s undergraduate degree is in History from Western Illinois University.  In addition, Joe has a Master’s in Curriculum and Instruction from National Louis University and a Master’s in School Leadership from Concordia University.



Instructional Supervisors

Athletic Director - Brian McDonald 847-932-2022

School Counselors - Greg Stilling 847-932-2267

Art/Music/Drama - Andrew Russell 847-932-2282

Business/Applied Technology/Family Consumer Science/Library - Cheryl Steffens 847-932-2015

English - Tara Nieves - 847-932-2024

International Language - Cheryl Steffens - 847-932-2015

Mathematics - Judy Smithhisler - 847-932-2012

Physical Wellness/Health/Driver Education - Mike McCaolou - 847-932-2172

Science - Mark Prosise - 847-932-2004

Social Studies - Jim Seward - 847-932-2009

Special Services - Robin Myerberg - 847-932-2090