Julia Sleeper, Executive Director

Julia Sleeper is the Co-Founder and Executive Director of Tree Street Youth Center. Born and raised in Bangor area, she initially moved to Lewiston as an undergraduate at Bates College. During her time as a student, she began connecting to the Downtown Lewiston community youth through service learning opportunities afforded to her as a Psychology and Education major. Over the past 10 years, Julia has continued to build on the relationships formed as an undergrad, seeking to provide valuable programming to at-risk youth in Lewiston-Auburn. After completing her Masters in Leadership and Organizational Studies at USM-LAC, she began the present-day Tree Street Youth Center.

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Moira Foley, Operations Director

Moira is the Operations Director at Tree Street.  Originally from Freeport, ME, Moira graduated from Guilford College in Greensboro, NC in 2006 with a BA in Women’s Studies and a BA in Sociology and Anthropology.  She will complete a MA in Leadership Studies from the University of Southern Maine in May of 2018.  She joins Tree Street with a varied professional background, having worked as the director of operations at a political media firm in Washington, DC, as a retreat guide fostering self-awareness and personal leadership in youth, and as a sternman on a fishing boat here off the coast of Maine.  Moira brings a passion for maintaining the organizational foundation that allows the Tree Street Team to do their great work.


Megan Guynes, Program Director

Megan Guynes comes to us from the other L/A: Los Angeles, CA. A graduate of Bates College, Megan joined the Tree Street family a year after graduation. She often describes Tree Street as a place where “you fall in love by chance, but you stay in love by choice.” Megan can most often be found dancing, singing, and filling the halls of Tree with adventure and life.


Julien Boone, Internships Coordinator

Julien joined Tree Street Youth as an AmeriCorps member in June of 2017 and in July of 2018 joined the staff in the Internship Coordinator role. Julien recently graduated from Husson University in Bangor, Maine  with a major in International Business. He also played Baseball at Husson for 4 seasons under head coach Jason Harvey. Julien is originally from Washington, D.C. and came to Maine back in 2013 to finish school and work with his older brother Roosevelt Boone that also runs a non-profit organization (Strong Mind-Strong Body) out of the University of Maine-Orono and that’s how Julien got connected to Tree Street.




Adriana Ortiz-Burnham, Maple Program Manager

Adriana was born and raised in Maine, though her family spent the early years of her childhood in her father’s home state of Chihuahua, México. She studied sociology, with minors in history and Portuguese, at Middlebury College in Vermont. Before moving to the M.A.P.L.E. program, Adriana worked in B.R.A.N.C.H.E.S., where she fell in love with Tree Street Youth. She enjoys – among other things – books by J.K. Rowling, television by Shonda Rhimes, and winter by New England. 




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Meg Young, BRANCHES Program Manager

Meg grew up in Middlebury, Vermont and graduated from Tufts University in 2014 with a double major in anthropology and community health. After college she spent two and a half years living in the north east of Brazil studying medical anthropology in conjunction with the Universidade Federal do Recôncavo da Bahia. Meg is so excited to be back in New England and to become a part of the Tree Street community.



Anwar Whiting, Sequoia Juvenile Justice Initiative Director  

Anwar graduated from CMMC and received his degree in automotive technology. He joined Tree Street Youth as a volunteer when the center began, then he switched to a staff position leading the Sequoia program. Anwar’s vision is to support youth to realize their full potential beyond their experiential learning.





Cody Mousseau, Sequoia Activities Coordinator

Cody is from right here in Lewiston and has lived here for pretty much his whole life. A graduate from Berea College, which is located down in Kentucky, Cody has his Bachelor’s degree in Communication, with a minor in Broadcast Journalism. Although he spends a lot of time in the office doing work, he can also be found playing basketball with the youth on any given afternoon.


Alli Nolan, Development & Marketing Associate

Alli is originally from Los Angeles, California and moved to the other L/A after graduating from Colby College with a Bachelor’s Degree in Latin American Studies with a minor in Education. Alli started her journey at Tree Street Youth as the BRANCHES Program Manager from 2014 – 2017. She then spent a year working for a youth leadership and cultural exchange organization in Nicaragua and Panama. She has now returned to Lewiston with the Development & Marketing team for Tree Street and is so happy to be reunited with her Tree family. Alli loves cooking Cuban food, singing along to Ozuna, and doing crazy workouts.