Welcome to the MCST High School Main Office

Denise Trimmer - Main Office Secretary

Phone: 973-627-4600 x226


Degrees and Certifications:

Mrs. Denise Trimmer

Mrs. Trimmer joined MCST in 2008 after many years of employment in the industrial arts. She provides administrative support to the CTE and Core Academic Instructional Supervisors in all aspects of keeping a busy school afloat; purchasing, communications, faculty assistance, record keeping, MySchoolBucks, etc. and thoroughly enjoys being a member of the main office support team.

Mrs. Trimmer will happily answer any question you may have and/or direct you accordingly.

Lynn Mankofsky - Main Office Secretary

Phone: 973-627-4600 X 223


Degrees and Certifications:

Ms. Lynn Mankofsky

Ms. Mankofsky came to MCST from Hackettstown BOE in July 2017. She handles all aspects of running a busy desk at the forefront of the main office, coordinates field trips for the student population, as well as substitute teacher assignments. Ms. Mankofsky thoroughly enjoys her position at MCST, as well providing support to and interacting with all students and staff!

In her spare time, Ms. Mankofsky is a huge fan of healthy living and exercise. She shares her home with 2 very spoiled felines and proudly has their pictures displayed on her desk in the main office.

Renee Vollmar - Main Office Secretary

Phone: 973-627-4600 X260


Degrees and Certifications:

Mrs. Renee Vollmar

Renee began her professional career in Computer Science and changed later to the field of fashion where she owned/operated Bella Sposa Bridal for 20 years.  She has three children (all college grads) who all went through the Denville school system.