Miles S. Sax Ph.D.

Charles and Sarah P. Becker ’27 Arboretum Director

Miles Schwartz Sax joined the Arboretum in 2019 serving as the institution’s fifth Director since its establishment in 1931. He is responsible for advancing the mission of the Arboretum through strategic planning, landscape management, teaching, research, curation and fundraising. Miles manages the Arboretums operations, facilities, staff and 750-acre landscape which encompasses natural areas, greenhouses, specialty gardens and plant collections. 

Born and raised in Western Massachusetts, Miles grew up exploring the forests, coastlines and mountains of New England. Miles found his calling in the field of public horticulture while managing and researching the species apple (Malus) collection at the Arnold Arboretum of Harvard University. Inspired by botanic gardens capacity to create immersive environments that foster public engagement and stewardship of our planets flora, he went on to gain further experience in public horticulture working at The Morton Arboretum, Cornell Botanic Gardens and Stellenbosch University Botanical Garden in South Africa.

Miles holds a Bachelor of Science degree from the University of New Hampshire, a Master’s degree in Public Garden Leadership and a doctorate in Horticultural Biology from Cornell University. His academic focus and research has revolved around issues of urban and environmental horticulture, tree selection and evaluation, stress physiology and rare plant conservation. In addition to his role as Arboretum Director, Miles will serve as an Adjunct Professor in the Botany Department, a fellow of the Goodwin-Niering Center for the Environment and a voting member of the Connecticut College’s sustainability initiative known as the Environmental Model Committee.

Maggie Redfern, Connecticut College Arboretum Assistant Director

Maggie Redfern

Assistant Director

Maggie joined the Arboretum staff in November 2014. Her primary responsibility is to coordinate the design and implementation of education programs for the College and community. She also leads tours, teaches classes and oversees the volunteer program. In 2020 Maggie worked with a group of community members to establish New London Trees, a non-profit organization with a mission to increase the city's tree population through community planting and care, education, and advocacy.

Maggie brings several years of experience in the field of visitor services from the Arnold Arboretum to this position. She also managed a successful grant application and traveling exhibition entitled Palaces for the People: Guastavino and the Art of Structural Tile. Guastavino vaulted ceilings can be found in the entryways of Plant, Blackstone and Branford Houses on the Connecticut College campus.

Maggie received a certificate in landscape preservation from the Landscape Institute of the Boston Architectural College and a bachelor of architecture from California Polytechnic State University, San Luis Obispo.

Mary Villa

Curator/ Information Resource Manager

Mary joined the Arboretum staff in July 2004 in the new position of curator/ information resource manager. Her duties include conducting inventories, evaluating plants and keeping maps and plant records up-to-date. She also manages the accessions database and the Arboretum library of books, periodicals, plans and images.

Mary received a Bachelor of Science from the University of Connecticut with a major in landscape architecture. Her prior work experience includes landscape design and municipal planning. Mary's interests include travel and visiting arboreta and botanical gardens.

Leigh S. Knuttel


Leigh joined the Arboretum staff as the horticulturist in 2008, and is responsible for the day-to-day operations and maintenance of the Arboretum and the greenhouse. She also works with the Botany Department faculty and supervises the horticultural staff and student workers. Leigh attended Connecticut College with a major in botany and brings 30 years of experience in the field of horticulture to this position. Her past work includes growing of specialty annuals, perennials and woody ornamental plants, and more recently, grounds and garden design and maintenance and garden writing have been areas of primary focus. During her spare time, Leigh does community volunteer work. She also enjoys reading and going on sailing adventures with her family. 

Kraig Clark


Kraig joined the Arboretum staff in November 2013. Previously, Kraig worked in the Facilities Management Department as a groundskeeper. His background in residential and commercial lawn care and maintenance is extensive due to his time spent working for his family business in the lawn care industry. In his spare time Kraig enjoys fishing, kayaking and spending time with his family and friends, including his dog Bridget, an Australian Sheperd.

Cindy Tosone

Department Assistant

Cindy joined the Arboretum staff in August 2019 and is responsible for the day-to-day operations in the office as well as the marketing and promotion of educational and membership events.  She manages the website, membership and the financial accounting for the department.  She has a Bachelor of Science in Business Administration and a Master of Education with a concentration in Curriculum and Instruction.  Cindy is passionate about the great outdoors and looks forward to helping others enjoy the many benefits of the Arboretum.  

Senior Groundsperson

Bryan Goulet

Senior Groundsperson

Bryan Goulet retired in June 2020.  Bryan had joined the Arboretum staff in March 2005 as an Arboretum groundsperson, transferring from the Facilities Management Department of the College where he had worked since 1999. He received his degree in Arboriculture from the University of Massachusetts in 1981, bringing with him a valuable background in tree care. Bryan and his wife Christie enjoy motorcycling, traveling and hiking. He has one grown daughter, Chelsea.

Glenn D. Dreyer

Charles and Sarah P. Becker ’27 Arboretum Director Emeritus

Glenn served as the first full time Arboretum director from 1988 to 2018. He oversaw all department functions including planning, land management, public education, collection curation, research, and fundraising. Mr. Dreyer reported to the Provost/Dean of the Faculty, and worked closely with faculty and students to facilitate the use of the Arboretum as an academic resource.

Upon his retirement, the Arboretum's bog was renamed in his honor: the Glenn Dreyer Bog. The bog, located southwest of the pond, serves as an important habitat for wildlife and is the site of numerous teaching and research initiatives. To improve access to the bog for use as a living laboratory, a boardwalk was constructed in the fall of 2016. Mr. Dreyer designed, secured financial support and oversaw building of the new boardwalk that allows one to really experience this wonderful, yet previously largely hidden, resource in the Arboretum. This was just one of many projects Mr. Dreyer championed for the College during his nearly four decades of service. 

Glenn Dreyer began working for the Arboretum in a landscape maintenance capacity while still a graduate student in 1982. The next year he became Assistant Arboretum Director under William A. Niering. In 1988, he was appointed to the position of Arboretum Director. Mr. Dreyer was also an adjunct professor of botany and the executive director of the Goodwin-Niering Center for the Environment. His professional and research interests are at the interface between ecology and horticulture, and he conducts research in vegetation management, invasive plants, plant community ecology and urban forestry. He is the author of the books:Connecticut’s Notable TreesandGreening Connecticut’s Cities and Towns: Managing Public Trees and Community Forests, in addition to many professional and popular articles.