Staff and Teachers


Photo of Jen and childrenJen Kiok
Executive Director

Jen Kiok is a lifelong activist with a deep commitment to justice. For the past 15 years she has worked as a community-based educator, using education as a tool for social change. Jen identifies as a secular Jew and a spiritual Jew who feels a deep sense of connection with her ancestors. She believes that we have a collective responsibility to work in solidarity with people whose identity mirrors the identity of our ancestors and envisions a Workmen's Circle community in which we work hard to take care of each other and the world. Jen loves spending time in nature with her husband, Seth, and their children, Rose and Jonah. She uses she/her/hers pronouns.

Reach Jen at 617-566-6281 or

Sandy Martin

Office Manager 

Sandy has worked for, and volunteered with, youth organizations and community coalitions in the Boston area for more than 30 years. She was the coordinator of the South End/Lower Roxbury Youth Workers' Alliance for more than ten years- an organization which became a model for other neighborhoods across the city. 

Sandy's parents both grew up in Jewish Roxbury, and she is happy to be working with Boston's Jewish social justice community. She is also very happy spending time with her 1-year old granddaughter. Sandy uses she/her/hers pronouns.

Reach Sandy at 617-566-6281 or by email at

Michelle Weiser

Deputy Director

Michelle is a graduate of Boston University, where she majored in Communications and minored in Women, Gender and Sexuality studies. Michelle participated in the JOIN for Justice '14-15 Fellowship program, and was a community organizer at Toxics Action Center prior to joining Workmen's Circle. She also worked for two years in Public Affairs at Gay & Lesbian Advocates & Defenders (GLAD). Michelle lives in a cooperative home in Jamaica Plain and is overjoyed to be working for collective liberation as part of the Workmen's Circle community. Michelle uses she/her/hers pronouns.

Reach Michelle at 617-566-6281 or by email at

Alexandra Corwin

Education Director

Alexandra Corwin is a Chicago native with a BA in Women's and Gender Studies and African Black Diaspora Studies from DePaul University. Prior to joining BWC, Alexandra enjoyed shaping education for children that overlapped with the arts, labor rights, anti-racism, feminism and environmental stewardship as a 9th grade science teacher, 7th grade literary teacher and as the school director at the Chicago Workmen's Circle Shule. Alexandra enjoys learning new recipes for vegan pies, writing poetry, collaging and hosting Shabbos dinners. 


Reach Alexandra at 617-566-6281 or by email at 


Maddy Popkin
Cultural Worker & Member Organizer

Maddy is a queer Jewish organizer, artist and cultural worker and an aspiring clown and Yiddishist. They grew up in New Jersey and Tokyo, Japan--where they learned how nourishing a vibrant and multicultural Jewish community could be. After organizing with the queer and trans community--and studying-- at Barnard College, they moved to Boston to train with JOIN and work with The Share Union--where they learned from an incredible team of feminist labor organizers about the value of inter-generational and relational power building. Maddy started working with the BWC as a member leader of GRAGGER! and has continued to grow as a Jewish cultural worker and educator with the BWC ever since! 

Reach Maddy at 617-566-6281 or by email at


A Besere Velt Yiddish Chorus
Derek David, Director

Derek David (b.1985) is a composer, conductor, and music educator based in Boston, Massachusetts. As a composer, his dramatic and vibrant chamber music has been performed in both Europe and the United States and has received great recognition from audiences and critics alike.  Derek's String Quartet (2011) has been met with international praise and repeated performances throughout the United States. It was described by Sabino Pena of France's as "a true musical jewel of the 21st Century." The quartet was awarded both the EAMA Nadia Boulanger Institute Prize and the Morton Gould ASCAP Award in 2011, as well as first place in the American Prize in 2015. Additionally, he is the current recipient of the 2018 SFCM Hoefer Prize for his body of work from over the past 10 years. As a conductor, Derek was the conductor of the Full Circle Opera Project for their 2003-2004 season and conducted the finale to Puccini's Turandot in Los Angeles Walt Disney Concert Hall. As a choir conductor, he conducted the men's and women's choirs at the Walden School from 2015-2017.

Dr. David holds a DMA from the New England Conservatory of Music and is currently a teaching fellow at Harvard University, where he is a five-time recipient of the Harvard University Distinction in Teaching Award. Outside of composition and conducting, his musical areas of interest extend to medieval theory and musicology, the Beatles, and Jewish Music.

For more information please visit


Sunday School Teachers

Circle Playtime: Rachel Hess

Kindergarten 1: Rosa Blumenfeld

Kindergarten 2: Hannah Nahar

Alef (1): Char Skidmore

Beyz (2): Abigail Russo

Giml (3): Pauline Katz

Daled (4): Jessica Green

Hey (5): Mirah Sand

Vov (6): Sarah Robins

Zayin (7): Megan Wolf

Music (Circle Playtime and Shule): Abbie Goldberg & Sam Slate

Hebrew: Naomi Weinblatt

Yiddish Teachers

Gabe Miner
Lillian Shporer Leavitt
Rachelle Grossman