© 2016 Erin MacDonaldCommunity Programs Manager

Erin MacDonald
416.413.9244 x12 | erin[at]

Erin holds a Bachelor of Landscape Architecture from the University of Guelph and loves to see people connecting with and improving their urban landscape. Before joining LEAF, Erin worked as the Green Streets Coordinator with the City of Vancouver where she helped residents beautify and green their neighbourhoods and also worked to further the City’s urban food-growing movement. She loves to explore new places, new music and dance!


Field Operations Coordinator

Brenna Anstett
416.413.9244 x16 | brenna[at]

Brenna holds an Honours Bachelor of Arts degree in Geography and Environmental Governance from the University of Guelph and aspires to continue her education in forest conservation. She is also an ISA certified arborist.  Her past experience includes research in dendroclimatology and tree planting projects with the Ausable Bayfield Conservation Authority. In her spare time, Brenna enjoys figure skating, travelling, photography and reading.


Residential Planting Programs Coordinator

Natasha Keshavjee
416.413.9244 x18 | natasha[at]

Natasha holds an Honours Bachelor of Liberal Arts in International Development Studies and Environmental Studies from York University. She is passionate about tree conservation, water protection and environmental education and strives to foster an appreciation for our natural world. Natasha started out at LEAF as an Outreach and Garden Steward volunteer before working for the organization in 2016. In her spare time, she loves travelling, exploring natural spaces and boxing!



Marketing and Education Assistant

Rachel Marcus
416.413.9244 x14 | rachel[at]

Rachel has a Bachelor of Science from the University of Toronto. She is currently pursuing Law at Osgoode Hall, and hopes to focus on environmental law and intellectual property law. She believes sustainability focused technology can incentivize communities to be environmentally responsible. In her spare time, Rachel loves playing volleyball and spending time with animals.



Stewardship Assistant

Mallory Thacker
416.413.9244 | mallory[at]

Mallory holds a Bachelor of Landscape Architecture from the University of Guelph and is currently completing a Master of Forest Conservation at the University of Toronto. She is interested in the design of city public spaces that allows for urban trees to thrive and people to connect to their urban tree canopy. Her past work experiences have been geared towards her love for working outdoors with plants and other interests include soccer, biking and exploring the city.



Planting and Stewardship Intern

Montanna Diakun

Montanna holds a Master of Forest Conservation degree from the University of Toronto and is also an ISA-Certified Arborist. Before coming to LEAF, she held several positions in ecological research, environmental stewardship, and community engagement, both in Toronto, and in Victoria, BC.  In her spare time, Montanna enjoys reading, music, and long walks outdoors.


Education and Outreach Intern

Erica Hazlett
416.413.9244 x13 | erica[at]

Erica holds a graduate diploma in Environmental Sciences and a Bachelors of Arts and Science degree in Conservation Biology and Anthropology from the University of Guelph, and aspires to obtain her ISA-Certified Arborist designation.  Prior to joining LEAF, Erica held positions with various environmental organizations, including: working with Ontario Streams as a habitat restoration technician, working as a restoration field labourer for both the TRCA and CVC, and working as a nursery assistant at a native tree and shrub farm.  In her spare time, Erica enjoys exploring the great outdoors with her four-legged pal, Jerry, and binging on nachos and Netflix.



©2018 Natalie SecenVolunteer & Stewardship Intern

Natalie Secen
416.413.9244 x15 | natalie[at]

Natalie holds a Master of Resource and Environmental Management degree from Dalhousie University and an Honours Bachelor of Biological Science degree from the University of Guelph. Prior to joining LEAF, she helped to implement and further develop Halifax Regional Municipality’s urban forest master plan, and has contributed to urban forestry research at both the municipal and national level. She is passionate about connecting people to nature, whether it’s through a backcountry canoe trip or an urban street tree. In her spare time, she enjoys reading, hiking, paddling, and (attempting to) learn the guitar!



Executive Director

Janet McKay
416.413.9244 x17 |  janet[at]

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.