Board of Trustees

List of 20 members.

• 

  Tatem Read 

  Bio

  Tatem lives in Mill Valley, California with her husband, Bay-Area native Morgan Read, and her two children Carter (10) and James (8). She holds a B.A. degree in English from the University of Virginia. For the past fifteen years, Tatem has served as the Director of Berggruen Gallery in San Francisco, the premier commercial art gallery for modern and contemporary art on the West Coast. Tatem has built an art advising business affiliated with Berggruen Gallery, and spends her time visiting galleries and traveling the country on behalf of her clients. She has served on the boards of the Bay Area Discovery Museum, the Virginia Center for the Creative Arts, one of the nation’s largest artist residency programs, the Ellett Board of St. Catherine’s School in Richmond, Virginia, and the MCM Foundation as well as the Development Committee for Marin Horizon School.
• 

  Peter Bryan 

  Bio

  Peter is a resident of Mill Valley with his spouse, Megan Lisska, and two children, James and Eleanor ’28. Peter has been a member of the Marin Horizon community for 10 years and is currently the Vice Chair. He has worked in the construction and development industry for 25 years. Currently, he is a partner at TMG Partners and previously worked for the Golden State Warriors, where he was responsible for the construction and development of Chase Center and the surrounding mixed-use development. Peter holds a Bachelor of Science in Engineering (B.S.E.) from Duke University.
• 

  Bill Perrine 

  Bio

  Bill is the Head of School at Marin Horizon School. He began his headship in 2018. Bill began his educational career in the Bay Area as a math teacher at The Town School for Boys. He continued his career at the Bancroft School in Worcester, MA and served as Middle School Head at Friends Academy in North Dartmouth, MA for ten years before moving to Oak Meadow as its Head of School in 2012. He has a Bachelor of Arts from Hamilton College and a Master of Arts in Teaching from the University of San Francisco.
• 

  Rohit Agarwal 

  Bio

  A resident of Tiburon and parent to Anika ‘24, Rohit joined the Board in 2016 and currently serves as the Co-Chair of the Diversity, Equity, and Inclusion Committee. Previously, Rohit was the Development Committee Chair and a group leader with the Innovative Revenue Initiative, an ad-hoc committee of the Board. Rohit was until recently the General Manager for Education for Amazon where he led Amazon’s efforts to deliver digital curriculum, content platforms, and consumer reading products for the K-12 education market.
• 

  Hannelore "Hanne" Barnes 

  Bio

  A resident of Mill Valley and parent to Helena ’20 and Portia ’23, Hanne currently serves on the Site Committee. Prior to her own residential architecture practice, Hanne worked in the New York & London offices of Kohn Pedersen Fox as well as the San Francisco offices of EHDD and Robert Frear Architects.  Hanne holds a B.A. from Smith College and an M.Arch. from Columbia University.
• 

  Sharman Bonus 

  Bio

  Sharman is a resident of San Rafael. She was the Director of Admissions and Tuition Assistance at Marin Horizon from 2006-2014. She also crafted internal and external marketing messaging for the school. Her two sons attended Marin Horizon from Toddler through 8th grade, graduated from Marin Catholic and are now enrolled and play baseball at University of California, Berkeley and Washington University in St. Louis.  

  
  Sharman graduated from the University of Notre Dame with a Bachelor of Arts in English and Economics and pursued a Masters of Arts in Literature at Northwestern University. Her career in working with prospective students through the admissions process dates back to the 1980s, when she held various positions in the Offices of Admissions and Financial Aid at Northwestern University’s Kellogg Graduate School of Management and University of Chicago’s Graduate (now, Booth) School of Business. She now runs her own high school and college test prep and admissions counseling business in Marin County.
• 

  Jennifer "Jen / Jennifer" Coyne 

  Bio

  A resident of Mill Valley and parent of Ronan ’26, Jennifer joined the Board in 2020, is the Chair of the Committee on Trustees, the Class Parent Coordinator for the Community Association, and has actively served on the Community Association in a number of roles in prior years. Jennifer is also a Board member at the Homestead Valley Community Association. Previously, Jennifer worked in the legal technology industry as a consultant to corporate in-house legal teams and law firm litigation departments, and, prior to that, she was an attorney specializing in Labor and Employment litigation. Jennifer holds a B.A. in the Administration of Justice from the Pennsylvania State University and a J.D. from Temple University.
• 

  Andy Davies 

  Bio

  Andy is the Head of School at The Healdsburg School, she brings over thirty years of experience to The Healdsburg School.  She has taught in public, independent, and alternative PK-12 schools as well as community college.  She served as Director of Curriculum and Assistant Head of Aspen Country Day School in Colorado, where she worked with faculty to revise and clearly articulate the curriculum across disciplines and throughout grades; developed a comprehensive teacher evaluation system; supported the implementation of MindUp and a middle school advisory program, and taught an interdisciplinary humanities class to 8thgrade students. 

  
  Andy also has served on the boards of The Aspen Valley Ski Club, The Buddy Program, and Grassroots Aspen Experience.  Her work in each of these programs centered on providing opportunities and services to typically underserved youth populations.

  
  She has two young adult children with her husband Brian and enjoys spending time hiking, biking, skiing, and reading.
• 

  Jaclyn "Jackie" Donovan 

  Bio

  A resident of Corte Madera and parent of Graham ’23 and Rowan ’26, Jackie joined the Board in 2021 and serves as President of the Marin Horizon Community Association. Jackie has actively served on the Community Association in a variety of roles in prior years. In addition, she currently sits on the Board of Marin Parent Education Group (Marin PEG). Previously, Jackie’s career in marketing and advertising spanned a diverse range of companies including Paramount Pictures, Revlon, Infiniti Automobiles, and K-Swiss Sporting Goods. Jackie holds a B.A. in Psychology from UCLA.
• 

  Jarom Fawson 

  Bio

  Jarom is a resident of Mill Valley with his wife, Nancy, and their two children, Leo ‘21 and Sidney ’23. Jarom has been a member of the Marin Horizon community for more than ten years and has served on the Finance committee since August 2020. He most recently led a cannabis company located in Redwood Valley, California. Previously he worked for fifteen years in financial services—investment banking in New York and private equity in San Francisco. Jarom graduated with a B.A. in Computer Science from New York University and earned his M.B.A. from The University of Chicago Booth School of Business.

• Brett Foley 

  Bio

  A resident of Mill Valley since 2005, and parent to Urban ’20, and Dawes ’23, Brett currently serves on the Site Committee. Upon moving to the Bay Area in 2005, Brett worked for Toll Brothers as a Project Manager, managing large Multi-family development and construction projects. Brett currently owns and operates Foley Built, a general contracting firm based in Mill Valley. Brett has a B.A. from Northeastern University, Masters in Construction Management from University of Southern California and is a licensed California General Contractor.
• 

  Ashley Goldsmith Buttner 

  Bio

  Ashley graduated from Marin Horizon in 1997, and currently lives in Berkeley.  She holds a B.A. in Women's Studies from Skidmore College, a M.S. in School Counseling from Northeastern, and a M.A. in Counseling Psychology from John F. Kennedy University. Ashley is a Marriage and Family Therapist, and works for Practice San Francisco - in their Mill Valley location.  She sees children, adolescents, and teens, and works with parents as well.  Ashley also has over 10 years of experience as a school counselor, and enjoys collaborating with schools in a variety of ways.
• 

  Sean How 

  Bio

  Sean lives in Mill Valley and joined Marin Horizon as an upper school math teacher in 2021. Along with his wife Natalie (MHS 4th Grade teacher) and son Declan (P3), Sean has fully embraced his new life living in the Bay Area and as a member of the Marin Horizon community. Previously, Sean lived in Los Angeles where he taught in independent schools for over 20 years. Though specializing in mathematics instruction, Sean also has experience teaching Latin, serving as a performing arts coordinator, leading outdoor education experiences, and working as a 5th grade teacher. Outside of education, Sean has worked for many years as a performing musician and loves playing any chance he can get. Sean holds a B.A. in Classics with an emphasis on ancient Greek and Latin and a minor in Asian Pacific Studies from Loyola Marymount University.
• 

  Mira Kim 

  Bio

  A resident of Mill Valley and parent to Rachel Malvin '26, Mira currently serves on the Diversity, Equity, and Inclusion Committee and has been a member of the Marin Horizon community since 2013. Mira has worked in brand marketing and the consumer-packaged goods industry for 25 years at the Clorox Co. She is currently CEO/owner of a design/build firm for solar and battery storage systems for residential and commercial markets and oversees a finance entity that funds solar projects for non-profits. Mira holds a B.A. from University of Pennsylvania and an M.B.A from the University of Chicago.
• 

  Sharon Lee 

  Bio

  A resident of San Francisco and parent of Ryan ’26, Sharon joined the Board in 2020 and currently serves as Chair of the Development Committee.  She also served as Chair of the 2019 Marin Horizon Art Auction where she focused primarily on overall fundraising strategy, data analysis, program execution, and team management.  She served as a member of the Diversity Committee (2019-2020).  She has volunteered for the Community Association and for the Office of Admissions since 2017. Previously, Sharon worked as an attorney for small to mid-size New York law firms in litigation and remains an active member of the NY and CA State Bar Associations. Sharon holds a B. A. in International Relations from Wellesley College and J.D with concentration in International Law from Pace University Law School.
• 

  Warren Leiden 

  Bio

  A resident of Mill Valley and parent of Alice ’22, Warren joined the board in 2017 and serves on the Finance Committee. Warren is a Partner Emeritus of Berry Appleman & Leiden LLP, a global corporate immigration law firm, where he served as managing partner. Previously, Warren was the Executive Director of the American Immigration Lawyers Association. Warren holds a B.A. in philosophy from the Johns Hopkins University and a J.D. from the Boston University School of Law.

• Alexis "Lexy" Lurie 

  Bio

  A resident of Mill Valley and parent to Harper ’27 and Logan ’30, Lexy currently serves on the Committee on Trustees. Lexy is also the Community Advisory Board Chair of the Heart and Armor Foundation for Veterans Health, creating and directing a community advocacy and support group for Bay Area veterans programming and health science research.
  
  Previously, Lexy practiced corporate finance law at Katten Muchin Rosenman and chapter 11 bankruptcy litigation at Foley & Lardner. Upon moving to the Bay Area, she continued to represent secured creditors in commercial litigation at the law firm of Davis Wright Tremaine before becoming a Director of Legal Recruiting with Lateral Link. Lexy is a member of the California State Bar.
  
  Lexy holds a B.A. in Political Science from the University of Kentucky and a J.D. from Vanderbilt University.
• 

  Ashley MacDonald 

  Bio

  Ashley is a Mill Valley resident and parent of Gracie '24 and Poppy '26. She currently sits on the Site and Sustainability Committee of the Marin Horizon Board and has been an active member of the Marin Horizon Community Association since 2014. She is also President of the Homestead Valley Community Association and has served on that Board since 2018. She has had a career in environmental consulting and accounting and has also worked at a number of non-profit environmental organizations over the years. She holds a B.A. in Anthropology and Religion from Trinity College and an M.B.A from Babson College.
• 

  Julia Ripperton 

  Bio

  Julia joined the Marin Horizon School community in 2019 as the 1st Grade Lead Teacher. She also is the Associate Teacher Program Coordinator. The Associate Teacher Program is a two-year program that familiarizes teachers in training with theoretical and practical aspects of classroom teaching. Julia grew up in sunny San Diego and always knew she wanted to work with children. She then moved to San Francisco, where she attended University of San Francisco. She graduated from USF with a Bachelor of Science in Psychology. She then went on to receive her Multiple Subject Teaching Credential and Masters in Teacher Education, also at USF. Julia is also in the process of earning her Educational Therapist Credential, as her passion is providing intervention to students with an array of learning differences. Julia currently lives in San Francisco with her cat Boogie. In her free time, she enjoys hiking at Lands End, baking, and traveling to new destinations around the world.
• 

  Ryan Stever 

  Bio

  A resident of Mill Valley and parent of Sawyer ‘24 and Alexander ’27. Ryan has worked in the finance industry for 20 years. He started his career at the Federal Reserve before earning his PhD in finance at the Haas School of Business at the University of California at Berkeley. Afterwards Ryan moved to Switzerland with his wife, Sarah, where he worked as an economist for an international central bank organization, the BIS. From there, Ryan started his career in asset management at Acadian Asset Management. Since then his focus has been on managing and guiding research on building quantitative investment strategies. In particular, Ryan focused on predicting stock returns using statistical techniques and various machine learning techniques. Following a move to Citadel, Ryan has joined the Aperio Group located in nearby Sausalito.