The Lewis & Clark Montessori School draws talented & dynamic individuals from diverse backgrounds. The staff bring a wealth of experience in classrooms & life to our students and community. Every day, they show their dedication to Montessori children and education in general through their tireless work on behalf of our students.

Our staff has a combined total experience of over 100 years in Montessori education and are led by AMI Montessori-trained administrators. Our teachers are all AMI Montessori-trained and Oregon licensed or Charter School Registered. In addition, most of our guides and administrators have Master’s degrees.

Click on the images below for contact information and to learn more about our guides, assistants, administrators, and support staff.

Leadership Team

Photo of Johanna Thomas

Johanna Thomas

Assistant – Oregon Trail
Work Phone: (503) 427 – 0803


Johanna was born in Milwaukie Oregon but moved around often as a child. Her father is German and she grew up in a bilingual household. Johanna has lived in Taiwan, China and Germany. Her childhood growing up overseas made her passionate about learning languages and other cultures. Most of all she just loves to connect with people and hear their stories. She came back to Oregon for highschool and found a love for art and theater. She attended Portland State University where she got a Bachelor of Arts in Art Practices. She was working as an art teacher at a local art studio when she realized her love for teaching. Her grandmother, her mother and her close cousin are all teachers. She tried out her own thing but couldn’t help but feel called to work with children as well. She is new to Montessori but loving it and is soaking it all up. She loves all the wonderful aspects that come out of this type of learning. She currently lives in Milwaukie with her husband Sean and springer spaniel puppy Winston. In her free time she enjoys, making art, spending time outside, and traveling with her friends.

Administrative Team

Student Support Team


Younger Elementary

Older Elementary

Montessori Adolescent Corps


Auxiliary Staff & Nutrition Services