David Keddie

David leads the graduate student ministry alongside teaching on Friday nights and discipling undergraduate men. He joined the staff in 2004 and married his fellow intern that year, Christina. Christina is the general counsel at Roundview Capital and they have three children, Joshua, Sophia, and Alexa.

Email: djkeddie@princeton.edu

Anna Megill

Anna works with the undergraduate women in PCF as well as helping to coordinate communications and alumni activity. She graduated from Princeton in June 2006 and started on staff that fall. She has been on staff since then, though she took a two year break from 2009-2011 to attend Gordon-Conwell Seminary. Her degree at Gordon-Conwell is a Masters in Church History (and she was a history major in undergrad), so she is always happy to interject vignettes from the history into her Bible studies and general conversation!

Email: amegill@princeton.edu

Yolanda Zhi

Yolanda graduated from Princeton University in 2020 with a degree in Civil and Environmental Engineering and certificate in Architecture. She worked at a structural engineering firm in New York City post-graduation until the spring of 2023 before joining PCF staff. Yolanda works primarily with first-year through third-year undergraduate women in PCF, helps coordinate undergraduate events, and serves as the PCF Administrator. She has a great interest in watercolor painting and art history, which she is eager to share with students.

Email: yzjin@alumni.princeton.edu

Ryan McDowell

Ryan helps with outreach and support for the first and second year students. He graduated from the university in 2024 with a degree in computer science, with a focus on the mathematical and theoretical side of the discipline. While a student, Ryan loved serving on PCF’s Global Ministry Team and spending time with the local church community. Other than that, his favorite activities include playing long board games and exploring the great outdoors, though not at the same time.

Email: rsymcd@gmail.com

Megan Musick

Megan graduated from Columbia International University with a degree in Intercultural Studies and later received an MA in International Development from Eastern University. She spent four years working with a Christian organization in northern Iraq as a health program manager, where she met her husband, John. Since then, she has worked as a case manager for exploited women and served alongside her husband as a pastors’ wife and then as a chaplain for international humanitarian workers. The Lord has blessed Megan and John with two children: Zeke and Tali. Megan now ministers to both undergraduate and graduate women with PCF and is excited to see how God works in and through students!  

Email: meganrmusick@gmail.com

John Musick

John serves both undergraduate and graduate students and teaches at the Friday night meetings. He graduated from Princeton in 2013 and later received a Master of Divinity Degree from The Southern Baptist Theological Seminary. He is currently in the dissertation stage of a PhD at SBTS focused on the Gospel of Matthew. After graduating from Princeton, John served as an intern with PCF. He has since completed an internship in northern Iraq, pastored a rural church, and worked as a chaplain to international NGO workers. He loves hosting with his wife, reading, and a good cup of coffee. He is married to Megan, and they have two wonderful kids: Zeke and Tali.   

Email: jmusick@alumni.princeton.edu

Naomi Vaida (Lima Braga)

Naomi works mainly with graduate women, and some undergraduates through discipleship, small groups, and fellowship. She completed her PhD in Psychology at Princeton in 2025 and joined staff in Spring 2026. Her research focused on the cognitive science of storytelling, so she loves noticing how Scripture uses story to shape and transform us. She was born in Romania and raised in Ireland before moving to the U.S. and marrying a Brazilian—needless to say, she loves good banter and cross-cultural interactions with students from many backgrounds.

Email: nvaida.pcf@gmail.com

Mackenzie Slagle

Mackenzie graduated from Princeton in 2025, having studied Italian literature and politics along with a minor in Global Health and Health Policy. As a student, she loved spending time in Christian community on campus, including her time in PCF and her involvement in Six14, Princeton’s Christian dance company. In her current role with PCF, she works primarily with first and second year students through discipleship and Bible studies, in addition to supporting the fellowship team. In her free time, you can probably find her at the nearest coffee shop reading some sort of theology book or listening to a podcast.

Email: mackenzieslagle16@gmail.com

Timmy Seiferth

Timmy works primarily with outreach and discipleship for first- and second-year undergraduate students. He also helps lead the Communication/Tech Team and the Prayer Team. Timmy graduated from Princeton in 2026 with a degree in psychology. As a student, he served as one of the prayer team leaders for two years, and also joyfully served on the worship team, specifically playing guitar and singing. Timmy hopes to potentially serve as a pastor in the future, or a Christian counselor, or both. In his free time, when he’s not playing guitar, reading, or watching movies, he enjoys making things with his hands and spending time with those closest to him.

Email: tseiferth@princeton.edu

Elinor Detmer

Elinor supports first- and second-year students through small groups and discipleship, as well as assisting with the outreach and music teams. A 2026 graduate of Princeton, she majored in Classics with minors in violin performance and medieval studies. She fills her free time with reading, music, and art, and loves hosting discussions on philosophy and literature over dinner.

Email: ed8072@princeton.edu

Bill Boyce

Bill holds a Master of Theology degree from Dallas Theological Seminary and a Doctor of Ministry in Pastoral Counseling from Westminster Theological Seminary. He graduated from Princeton University in 1979 and joined PCF staff with his wife Debbie in 1985. Bill served as director of PCF from 1996-2020. Bill serves the PCF alumni family by organizing regional gatherings, hosting Zoom events, and through personal care. Bill and Debbie live in Pine, CO, and have four adult children and five grandchildren.

Email: wcboyce@princeton.edu

Debbie Boyce

Debbie holds a Masters of Arts in Religion with a Biblical Counseling emphasis from Westminster Theological Seminary. She graduated from Princeton University in 1979, where she played on the women’s ice hockey team and was involved with ROTC. She joined staff with her husband Bill in 1985. Debbie serves the PCF alumni family by organizing regional gatherings, hosting Zoom events, and through personal care. Debbie and Bill live in Pine, CO, and have four adult children and five grandchildren.

Email: dlboyce@princeton.edu