Administration
Somer Snider, Principal 
Content/Departments/Programs Supervised
Message to the community:
Andrew Lee, Assistant Principal
- 8th Grade Lead Administrator
- Reports to Principal
Content/Departments/Programs Supervised
- Mathematics
- Art/Technology
- Physical Education and Health
- Observations/Evaluations
- 8th Grade Team
- Equity/Cultural Proficiency
- No Place For Hate
- After School/Extracurricular Activities
- Intermural and Intramural Sports
- School Testing Coordinator
- Building Services
Message to the community:
Hello Cabin John Middle School community! This is my second year at CJMS and I am extremely excited to be a part of such a wonderful community. I am a Montgomery County product through and through. I was born, raised and graduated in MCPS. This will be my 15th year as an educator in MCPS. Prior to my current position, I was a P.E. and Health teacher, 8th and 6th grade team leader, Restorative Justice Coordinator and Assistant School Administrator. I have a passion for relationship building and equity in education. A little bit about my personal life, I am happily married with 2 young children and love any and all sports! I am proud to be a Cabin John cougar and serve this community of learners. Looking forward to a great school year!
Casey Siddons, Assistant Principal
- 7th Grade Lead Administrator
- Reports to Principal
Content/Departments/Programs Supervised
- Grade 7
- Literacy
- Social Studies
- World Languages
- Security Team
- On-Site Emergency Team
- Observations/Evaluations
- Minority Scholars Program
- School Scheduler
- Pride and Advisory Programs
Message to the community:
Greetings Cabin John Middle School community! This school year will be my second year as a Cabin John Cougar, and I feel incredibly privileged to serve this community and our students and families. I am originally from a small town outside of Scranton, Pennsylvania, and after graduating from Kutztown University of Pennsylvania, I moved to Montgomery County to teach social studies at Sligo Middle School. This will be my 15th year as an educator in MCPS. Prior to serving as an assistant principal here at CJMS, I was the Academy Coordinator and Theory of Knowledge teacher at John F. Kennedy High School; a Consultant Teacher in the Office of Human Resources and Development; Project SUCCESS Teacher at Argyle Magnet Middle School (AMMS); social studies Content Specialist and team leader at AMMS; and prior to that served as a social studies teacher at Sligo Middle School to start my career in MCPS. My core values are empathy and integrity: with these values in mind, I strongly believe in our school’s goal in helping our students be their most respectful selves, build positive interpersonal relationships, and support their resilience to bounce back from challenges. My wife and I live in Wheaton, Maryland, and we have one wonderful daughter who is going to be three very soon! I am super excited for this school year!
Kimberly Trostle, Assistant School Administrator
- 6th Grade Administrator
- Reports to Principal
Content/Departments/Programs Supervised
- Special Education
- School Counseling
- 6th Grade Team
- Transportation
- Cafeteria Services
- Back Up School Testing Coordinator
- CSST/Student Well-Being Team
- Grading, Reporting, and Feedback
- Parent Volunteer Coordinator
Message to the community:
Greetings, Cabin John Middle School community! In my second year as an administrator, I am excited to continue my journey here with the CJMS community. Originally from Pennsylvania, I spent my first ten years as an educator in the classroom. I taught middle school and high school English, Language Arts, AP Lit & Comp, Communications, Broadcast Journalism, and Film Studies. Prior to entering administration, I served as an elementary school counselor and a high school counselor. I strongly believe in and value equity in education with an emphasis on compassion and empathy. Happily married to my wonderful husband, we enjoy traveling (especially to Disney), reading, being outdoors, spending time with family and friends, and taking care of our Labradoodle puppy (Olli). I am looking forward to another wonderful year here at Cabin John Middle School - go Cougars!