Rev. Nathan Detering (he/him)

Senior Minister

Rev. Nathan is our Senior Minister. He began serving UUAC in 2003, and his portfolio includes preaching, teaching, pastoral care, public ministry/witness, and staff supervision.

Nathan grew up in the midwest, the first of three children. His undergraduate degree is from Beloit College, where he concentrated in sociology and psychology. His experience as a Peace Corps volunteer in the West Indies gave him his first real opportunity to hear his call to the ministry. Upon his return from the Peace Corps in 1997 he applied to seminary, choosing the program at Boston University’s School of Theology, from which he graduated Cum Laude in May 2001. Nathan and his wife, Karen, live nearby with their two children.

Rev. Nathan can be reached at .

Louise Smith-Erb (they/them)

Ministerial Intern

Louise is excited to be UUAC’s 2026-27 ministerial intern. Shaped by a childhood of board games and forest adventures, their ministry is grounded in honoring the experience of being human together. They first wanted to become a minister after reading Tell the Wolves I’m Home (Carol Rifka Brunt) in high school and realizing that life is about our relationships, not our achievements. From there, they completed a religious studies major at Colby College and a Master of Divinity at Boston University. Experienced in community organizing, religious education, and chaplaincy, they love how Unitarian Universalism challenges us to be accountable to the promises we make each other.

With English, German, Irish, and Danish ancestry, Louise is curious about how our roots shape us and remains connected to their Christian upbringing. They still love the woods and board game nights, as well as dancing in queer clubs, watching campy horror movies, and spicing up New England food. Above all, they are grateful for family in Maine and queer community in Boston who love them even when they are a sore loser at the aforementioned games.

Deborah Weiner

Transitional Consulting Director of Faith Formation

Deborah Weiner is a Unitarian Universalist transitional ministries consultant and leader who has worked with congregations throughout the US and Canada. She is a lifelong UU and credentialed interim religious educator focused on helping congregations in transition bring health and vitality to their ministries and congregational systems. She has served in leadership roles for both the continental and New England Liberal Religious Educators Association (LREDA) and the Association for Unitarian Universalist Music Ministries (AUUMM) as well as the Association of Unitarian Universalist Transitions Professionals (AUUTP). For more than twenty years Deb was on the staff of the Unitarian Universalist Association. Deb lives in Lexington with her spouse, Ben Soule (also a lifelong UU); together they are parents to two daughters.

Sarah Deveau (she/her)

Music Director

Sarah is a conductor and singer originally from the Boston area. She has recently returned to Massachusetts after ten years in Denver, Colorado, where she served as Music Director for First Unitarian Society of Denver and Artistic Director of the Arvada Chorale, and completed work toward a Doctorate of Musical Arts in choral conducting. Sarah received her MM in choral conducting from Boston University and studied voice at Longy School of Music with Jayne West. She lives nearby with her wife, Rachael, and their two rambunctious young children.

For more information about our music program, joining the choir, including your child in the children’s choir, or sharing your musical talent during a worship service, contact Sarah at .

J. Kathleen Castellanos

Accompanist

Kathleen fills the role of Accompanist at First Parish in Sherborn. Originally from New Jersey, Kathleen has performed and coached throughout the US as well as Germany and Austria. Currently Boston based, she works and teaches throughout the New England area, including Emerson College, Boston Conservatory at Berklee, and UMass Boston. Kathleen is also on the voice and piano faculty at NEMPAC (North End Performing Arts Center) in Boston. She earned her BA from Rutgers, her MM from the University of Nebraska-Lincoln, and her GDP from Longy School of Bard College.

Heather Walker (she/her)

Church Administrator

A native of Cleveland, Heather came to Boston to attend college and earned both her B.A. in English and Women’s Studies and her M.A. in Children’s Literature from Simmons University. She has worked for a variety of nonprofits, including Simmons University and Radcliffe College, and has worked for a variety of churches in an administrative role. She is currently working to earn her Masters of Library Science: Archival Studies at Simmons University. Heather lives nearby with her wife, their four children, and two dogs.

Contact information is or 508-653-1422.

Erin Collier

Community Coordinator

Erin has been a member of UUAC since 2013 and has enjoyed many volunteer roles here, from teaching OWL to serving as a Worship Associate. After having raised three daughters to the point of adulthood, and growing through a long career in hospice and palliative nursing, Erin is stepping into a new work life grounded in her passions and values. She now finds herself happily working on an organic farm, and supporting her beloved UU community. Erin delights in all things outdoors, growing several gardens, keeping bees and maintaining a steady appreciation of all living beings outside and in.

You can reach Erin at .