Heather Harvison

Founder and Executive Director
As Founder and Executive Director of Sisters Circle, Heather Harvison is responsible for development and fundraising, board relations, communications and marketing, and overall strategic direction and leadership. Heather was named one of The Daily Record’s 2014 Top 100 Women; VIP List, Successful by 40; and up and comer on their list of influential Marylanders in Philanthropy. In 2016, she was honored with the Junior League’s Woman of Distinction Award. She was also featured on NBC’s Nightly News with Brian Williams and the Today Show, as well as Baltimore Magazine and The Baltimore Sun. Heather holds a Masters of Arts in Teaching from the Johns Hopkins University and a bachelor’s degree in communications with a concentration in public relations and advertising from Mary Baldwin College. She is a 2009 graduate of The Leadership program through the Greater Baltimore Committee.

Stephanie Radday

Director of Middle School Programs

StephanieStephanie Radday oversees weekly middle school programs, matches and supports seventh and eighth grade mentor-mentee pairs, and coordinates monthly programs and summer camp placements for Sisters Circle. She is a former Baltimore County School teacher who specializes in literacy development. She has a master’s degree in education from Fordham University, a Reading Specialist certification from the University of Pittsburgh, and a bachelor’s degree in communications from LeMoyne College.


Raven Williams

Middle School Coordinator

Raven Williams designs and leads weekly after-school activities for 6th-8th grade girls focused on thriving in middle school and embarking on the high school choice process. She also serves as Site Supervisor for Sisters Circle’s Summer Leadership Institute. Raven is a former Baltimore City Schools teacher and proud alumna of Teach for America with a focus on Secondary English Literature. She has a Masters of Arts in Teaching from Johns Hopkins University and a bachelor’s degree in English from Bennett College for Women.



Imani Yasin

Director of High School Programs Imani Yasin

Through collaboration with school staff, mentors, and families, Imani Yasin provides individualized guidance and support for our girls during the often challenging high school years. She works closely with our high school matches, directs monthly and summer programming, and focuses on the transition into high school. She previously served three Americorps terms in Baltimore City Schools as a Playworks coach and an elementary school teacher. She is also a hip-hop artist and songwriter. Imani earned a bachelor’s degree in Psychology from Philadelphia University. As a graduate of Sisters Circle, Imani is committed to advocating for youth in Baltimore.


Zara Cadoux

Director of Post-Secondary Programs

ZaraZara Cadoux leads our graduate initiatives focused on preparing for the post-secondary transition, building an alumnae network of support, and providing workforce development opportunities. Zara is dedicated to developing a summer jobs pipeline for our students and introducing them to a wide range of career options, most recently through our EXPLORE Internship Program. She also directs programming to prepare juniors and seniors for the transition from high school to college and career. Zara holds a BA in Geography-Anthropology from Vassar College and an MA in Intercultural Service, Leadership, and Management from the SIT Graduate Institute.


Mavis Jackson

Post-Secondary Counselor

MavisMavis Jackson provides college counseling and post-secondary guidance for our high schoolers by offering 1-1 support with the college and financial aid process, advising first-generation college students during the transition from high school, and coaching students on all continuing education options and opportunities. Mavis is also the Director of College Counseling at Vivien T. Thomas Medical Arts Academy and formerly the College Readiness Specialist for the Baltimore City Public School System. She earned a Bachelor of Science degree in Political Science and Economics, as well as a Masters of Arts degree in Urban Education, from Towson University.She is also a proud graduate of Western High School.


LaShae Felder

Program Administrator

LaShaeLaShae provides professional support for a wide range of projects, programs and events essential to the success of our high school and post-secondary young women. She is a former Baltimore County Public Schools language arts teacher. LaShae is a proud Sisters Circle graduate who previously worked as Program Coordinator for its Summer Leadership Institute. She holds a bachelor’s degree in Middle School Education from Stevenson University and she is an alumna of Bryn Mawr School for Girls.



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