Acting Executive Director
Erin MacDonald (she/her)
416.413.9244 | erin[at]yourleaf.org
Erin is a lifelong lover of plants and nature and has been a part of the LEAF team since 2014. She holds a Bachelor of Landscape Architecture from the University of Guelph and has over twelve years of professional experience dedicated to environmental education and stewardship across the non-profit, municipal and private sectors. Before joining LEAF, Erin worked at the City of Vancouver where she helped residents green their neighbourhoods and worked to further the City’s urban food-growing movement. In her current role at LEAF as Acting Executive Director, she oversees partnerships and overall organizational wellbeing.
Acting Community Programs Manager
Brian Millward (he/him)
416.413.9244 | brian[at]yourleaf.org
Brian holds a Master's of Environmental and Life Sciences from Trent University. He has worked with LEAF over the past 2.5 years within the Community Programs team, delivering engaging environmental programs across the GTA. Brian is passionate about connecting people with nature and is committed to making the LEAF community an inviting space for everyone. As the CP Manager, Brian is responsible for overseeing all aspects of the Community Programs.
Education Coordinator
Lam Tran (she/her)
416.413.9244 | lam[at]yourleaf.org
As an educator and tree enthusiast, Lam is energized by sharing her passion about nature with those around her and supporting others through their learning journey. Lam has been active in the field of urban forestry since 2016 through volunteer opportunities and internships. Holding a Master's of Forest Conservation (MFC) from the University of Toronto, she combined her passion for trees and environmental justice by exploring inequitable urban tree distribution and demonstrating the need and opportunity for tree planting in underserved Toronto communities. As the Education Coordinator, Lam oversees our educational programs, including tree tours, presentations and workshops, the Young Urban Forest Leaders program, the Tree Tenders Training program, and helps deliver the TCHC Planting and Stewardship Initiative.
Stewardship Coordinator
Sarah Halonen (she/her, they/them)
416.413.9244 | sarah[at]yourleaf.org
Sarah holds an Honours Bachelor of Arts in Environmental Studies from the University of Toronto and a Bachelor of Arts in Political Science from Western University. With over 15 years’ experience in the environmental not-for-profit sector, Sarah has coordinated a wide range of stewardship programs connecting people of all ages, abilities, and identities with urban nature in Toronto’s High Park, Allan Gardens Park and Conservatory, and green spaces across London, UK. Sarah enjoys exploring wild places, gardening, insect and plant photography, and botanical sketching. As the Stewardship Coordinator, Sarah oversees our volunteer programs, including Community Tree Planting, Urban Forest Demonstration Gardens and volunteer outreach.
Education and Stewardship Intern
Maiesha Abdelmoula (they/them, she/her)
416.413.9244 | maiesha[at]yourleaf.org
Maiesha holds a Bachelors of Environmental Design from OCAD University. Maiesha began their connection with LEAF as a participant in the YUFL program, and has worked in a range of positions supporting environmental conservation and education over the last decade. Having grown up next to the temperate rainforest in British Columbia, Maiesha gained an affinity for the natural world as a place of inspiration and introspection. Through their work they hope to inspire others to build their own connections to the natural world. As the Education and Stewardship Intern, Maiesha is responsible for supporting the facilitation of our Community Programs.
Naturalization Assistant
Alexandra Catibog (she/her)
alexandra[at]yourleaf.org
Alexandra is currently pursuing a Bachelor of Environmental Biology from the University of Toronto. Growing up in Scarborough, Alexandra developed an appreciation for urban green spaces early on in life, which led to numerous internships spent exploring environmental stewardship and forestry. She hopes to share her knowledge and love of nature with others so that they can feel empowered to make a difference in their lives. In her spare time, Alexandra enjoys hiking, singing and playing flag football. As a Naturalization Assistant, Alexandra is responsible for supporting our Community Planting and Stewardship events.
Naturalization Assistant
Katharine King (she/her)
katharine[at]yourleaf.org
Katharine holds a Bachelor of Arts in Geography and Planning from Queen’s University, with a special interest in Gender and Social Geographies. She currently lives in the “City of Hamilton,” which is situated on the stolen land and traditional territories of the Erie, Neutral, Huron-Wendat, Haudenosaunee and Mississaugas. She is heavily involved in environmental activism in her community and cares deeply for others and nature. As a Naturalization Assistant, Katharine is responsible for supporting our Community Planting and Stewardship events.
Naturalization Assistant
Khawlah Usmani (she/her)
khawlah[at]yourleaf.org
Khawlah holds an Honours Bachelor of Science in Conservation and Biodiversity and Human Biology from the University of Toronto. Her admiration for nature has led her to explore the role bees play as pollinators and the impact they have on native species in Toronto. In her spare time, Khawlah enjoys reading, baking, and spending time outdoors. As a Naturalization Assistant, Khawlah is responsible for supporting our Community Planting and Stewardship events.
Residential Planting Programs Manager
Brenna Anstett (she/her)
416.413.9244 | brenna[at]yourleaf.org
Residential Planting Programs Operations Supervisor
Jess Wilkin (she/her)
416.413.9244 | jess[at]yourleaf.org
Jess holds a Bachelor of Arts in Tourism and Environment Studies from Brock University and a Master of Forest Conservation from the University of Toronto. She is also an ISA certified arborist. Jess' Master's research explored the role of Ontario's electrical distribution corridors in creating native pollinator habitat. She has experience with urban gardening and started out with LEAF in 2016 as a participant in the Young Urban Forest Leaders Program. Jess is passionate about getting people outdoors to explore and learn about their shared environments. As the RPP Operations Supervisor, Jess is responsible for overseeing the Backyard Tree Planting Program office operations, scheduling and client communications.
Residential Planting Programs Field Coordinator
Jon Curtis (he/him)
416.413.9244 | jon[at]yourleaf.org
Jon holds a Bachelor of Science specializing in Ecology, Evolutionary Biology and Indigenous Studies from the University of Toronto. He has long been passionate about the natural world, leading him to spend field seasons in Algonquin Park researching tick populations and the Amazon rainforest surveying amphibians. He has previously worked in the not-for-profit sector coordinating large-scale tree planting follow-up visits to conduct tree survival assessments and planting habitat evaluations for landowners. He is interested in combining his passion for wildlife and forest conservation at LEAF in hopes of creating a healthier urban community through tree planting and ecological restoration. As the RPP Field Coordinator, Jon is responsible for supporting the field operations of the Backyard Tree Planting Program, including consultations, tree planting and follow-ups.
Residential Planting Programs Assistant
Doreen Malapitan (she/her)
416.413.9244 | doreen[at]yourleaf.org
Doreen is passionate about engaging and educating her community on the natural environment, as well as conserving green spaces in urban areas. She holds an Honours Bachelor of Science degree in Biology and Environmental Science with a Minor in GIS from McMaster University. Doreen has experience in monitoring harmful algae blooms, native tree planting and invasive species removal in the GTA. In her spare time, she enjoys swimming, baking, travelling and trying food across the city. As the RPP Assistant, Doreen is responsible for supporting the Backyard Tree Planting Program office operations and client communications.
Marketing and Communications Coordinator
Meandra Provencal (she/her)
416.413.9244 | meandra[at]yourleaf.org
Meandra is passionate about engaging communities in the protection and stewardship of natural spaces. She holds an Honours Bachelor of Arts in Geography from the University of Toronto and a Graduate Certificate in Public Administration from Humber College. Meandra has experience in environmental policy research, public outreach and environmental stewardship. She first started with LEAF as a volunteer in 2015 and then joined the Young Urban Forest Leaders program in 2020. As the Marketing and Communications Coordinator, Meandra oversees our marketing, communications and fundraising activities.
Executive Director
Currently on leave
Janet McKay (she/her)
416.413.9244 | janet[at]yourleaf.org
Janet holds an Honours B.A. in Environment and Resource Management. She founded LEAF in 1996 and has focused on its evolution ever since. Janet is also a founding member of the Green Infrastructure Ontario Coalition. In her time away from LEAF, she loves travelling, hiking, and volunteering with a dog rescue organization.
