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Board of Directors

Gail Longo - Founder & President

Gail founded Cinquegranelli Montessori in 1989 and the Maria Montessori Language & Cultural Center (MMLCC) a decade later. A graduate of Seattle University, Gail is a Washington state certified teacher in elementary and secondary education and she completed her Montessori certification at Montessori Teacher Preparation of Washington. Gail has taught young children in public and parochial schools near and far, from co-op preschools affiliated with North Seattle Community college to children in Brindisi, Italy.

In May 2003, Gail joined with Eileen Knobbs and Sara Orton of Ballard High School in designing a Montessori lab school as a joint initiative with Seattle Public Schools. In 2010, Cinquegranelli Montessori moved from Ballard High School to a cozy home environment where it has thrived ever since. Gail remains a longtime advocate for bringing Montessori teaching and philosophy to Seattle Public Schools.

Gary Tribble - Treasurer

Gary Tribble is the current treasurer and member of the Montessori (MMLCC) Advisory Board and treasurer of the Seattle Chinese Garden Society. Now retired, he was Director of Finance for the Seattle Opera and earlier the business manager of Wajax Pacific, Inc. (a division of the Canadian multinational corporation). He was also a hospital orderly at Providence Hospital in Seattle and a US Navy Petty Officer on the USS Liberty.


Inspired by Dr. Montessori as a guiding star, he desires a world of peace where each individual (down to the youngest) is respected and listened to… and the adults grow in their strength, while bringing their energy and gifts to others.

Roxanne Trees - Board Member

Roxanne Trees often repeats a favorite old Chinese proverb that reminds us, "If you want to grow something to last for a year – plant rice; if you want to grow something to last for a decade – plant trees; if you want to grow something to last for 100 years, plant people."

She recently retired as Seattle Public Schools (SPS) Career & Technical Education (CTE) Health & Human Services (HHS) Program/ Pathway lead and is now at South Seattle College mentoring / observing educators completing their final (CTE) practicum. Recognized for National / State leadership and awards, she was recently selected as the 2018 National ACTE Lifetime Achievement winner.

Brian Genung - Board Member

Brian Genung is the Owner/Operator City Farm Solutions. He is also former Management team member of internationally recognized youth hostels: 'City Hostel Seattle' and 'Hotel Hotel' in Fremont. He is an Urban Homesteader With Multiple Awards From Seattle Tilth Urban Farm Tour.

Tammy Tan - Board Member

Tammy Tan is currently the lead teacher for the Montessori International School of Bellevue, having previously served other Montessori schools and as a teacher of Chinese. She holds a B.A. in General Education and is a MACTE certified, Montessori teacher. Tammy believes that young children offer new life and hope; they are a joy, creative, at peace, and-- both the present and the future. Tammy says Montessori Education is not only teaching children Math or Language. Far beyond it, this education is for life. It includes parents and families and is an Education whereby a person becomes whole – to have peace and love with self and others.

Advisory Board

Wes Harman

W.E.S. Harman is a consultant in agriculture & technology serving the organic farming community. A former college English professor, Wes lives in an off-grid cabin in the rain forest outside Olympia where he fills his days with writing and evenings with song.

Anne Heil

Anne & John Heil are thirty-year educators, currently teaching students from over 50 countries in the American International School in Nigeria.

John Heil

Originally a research scientist, John has taught chemistry, math, and environmental studies. He has worked with students in environmental research and restoration projects, believing that when children and adults work outdoors, their observation and interaction in a natural setting gives them a better sense of themselves and a connection to the global community. Their focus is on a peaceful world for children and environments and communities that meet their needs – physically, emotionally and socially.

Maryann Johnston

Maryann Johnston is a certified Montessori Teacher serving on the board for Montessori Institute of America (MIA). She is also on the Training Board for the Department of Learning (DEL).

Tony Longo

Tony Longo is retired transportation planner for the King County Metro Transit, and former secretary of the MMLCC.

Diane Saint

Diane Saint graduated from University of Oregon with a Bachelors in Elementary Education.  She earned a Masters in Whole Systems Design from Antioch Seattle. Diane, long time resident of Seattle, is currently studying and informing the community on how to benefit from quality-of-life boosting health supplements.

Diane has held a lifelong interest in forms of self expression as modalities for healing and self knowledge.  She has designed and offered workshops for adults exploring creativity through art, music, and movement.  Her work with children include a number of art projects designed to  activate and develop the child's personal sense of aesthetics.  Her personal interests include voice and guitar.

Yeon-Hee Yim 

Yeon-Hee Yim is Audio Director and Master Music Guide at Sonaesthetics Studios, composing music and providing music education for an authentic and empowered lifestyle. She has over 14 years of teaching experience including being an ESL/ELL tutor, writing coach, drumline instructor and more. She provides valuable skills to this board including: administration, technical support, event coordination, and web management.

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