
Tim Flagg
Senior Donor Relations Officer
Prior to joining Christendom in 2009, Tim spent 23 years in the information technology industry in sales, marketing and management. He has been an IT consultant for General Dynamics, Rockwell Intl., and Virginia Tech among others. He has held clearances with the federal government and has assessed and designed sensitive network systems for the U.S. Navy, U.S. Marine Corps, Dept. of Homeland Security and a few other unnamed agencies. Tim holds an FCC license and is a Registered Communications Distribution Designer (RCDD – 1 of 9000 worldwide) through the Building Industry Consulting Services International (BICSI). Drs. Warren & Anne Carroll have been dear friends of the Flagg family since the early 1970’s and he enjoys working with the Advancement team. Tim likes being part of a mission which changes lives and saves lives. He feels honored to know Christendom’s donors and their dreams for restoring all things in Christ. Contact Tim Flagg by email at tflagg@christendom.edu.

David J. Costanzo
Executive Director of Donor Relations
With a grateful heart to the many benefactors of Christendom College, for more than 8 years, David continues to be inspired and awed by our extended Christendom family–the most generous and faithful of Catholics –whose time, talent, prayers, and treasure has led to the near completion of the new Christ the King Chapel and their inspiring annual support of our faculty, staff, and students. Prior to beginning his service at Christendom College, David served for six years at The Cardinal Newman Society (CNS), applying his skills in communications, marketing, and development, with a particular focus on the outreach of their Newman Guide to Choosing a Catholic College. David continues to apply his heart for the New Evangelization to Christendom’s mission, “To Restore All Thing in Christ,” by bringing more than 28 years of business experience built on the foundation of a Bachelor of Science in Business Management from Franciscan University. David is excited to continue to partner with the benefactors of Christendom College and looks forward to laboring beside them to assure their gifts achieve their desired goals and passions for the greater glory of God, especially in this educational apostolate of Christendom. David remains inspired by the donor promise which states, “Together, we form the whole person in truth to build a hopeful future.” He notes that “any amount of time, talent, treasure and prayer donated to Christendom will reap so much good for the faithful Catholic Church. What a great gift to be a part of this incredible mission!” Contact David Costanzo by email at david.costanzo@christendom.edu or by mobile phone at 703.869.1169.

Melissa Jagel
Donor Relations Officer
Melissa is honored to join the Christendom family in its noble mission to “restore all things in Christ.” With a B.S. degree in Theatre from Northwestern University and an M.F.A. degree in Acting from the Catholic University of America, Melissa brings outstanding communication skills and performance expertise to the Advancement Team. Prior to her position as Donor Relations Officer, Melissa served as a Chapter Development Officer for Legatus, successfully adding dozens of members to the organization and growing chapters throughout the West Region. Her top skill is relationship building, particularly with Catholic executives, leaders, and potential donors. As Christendom’s first Donor Relations Officer serving the Western states, Melissa is eager to introduce and to share the mission of the College with many new constituents, and to grow the Christendom donor base in a largely untapped area of the country. Passionate about the arts, the Catholic faith, and individuals in need, Melissa’s early career experience includes professional theatre, commercials, and film, university ministry, a decade of pro-life advocacy, service as a catechist, and English as a Second Language instruction. Melissa is blessed to continue her career as a Christendom College Donor Relations Officer, building partnerships with donors and advancing Catholic liberal arts education and relevant Catholic thought in the U.S. Outside of work, Melissa enjoys time with family, volunteering, hiking, dancing, and traveling. Contact Melissa Jagel by email at melissa.jagel@christendom.edu or by phone by calling her mobile 818.257.3340.

Randall Tan
Philanthropy Officer
After a powerful experience at World Youth Day 2016 in Poland, Randall has felt a call to bring hope into a desolate world. One year later, he and his wife Bianca, joined The Culture Project Intl., traveling around the country to speak on Theology of the Body, healing, and living a virtuous life. Following his five years with The Culture Project, Randall has discovered that his desire to see a culture that values God, family, and holiness was taking shape in a new way: By joining the Christendom family and its mission. He has seen that Christendom College truly seeks to cultivate the next generation of leaders in the Church and is excited to invite benefactors to support that vital mission. Randall now resides in Pittsburgh with his wife, Bianca, and their son. Contact Randall Tan by email at randall.tan@christendom.edu.

Vince Criste
Director of Alumni Relations
Vince graduated in 1998 with a BA in Philosophy and has been “restoring all things in Christ” for more than 20 years in various charitable organizations including research, medical, military, pro-family groups, and educational apostolates. Joining the Advancement team in May 2014, Vince is responsible for all aspects of alumni and donor relations. Specifically, Vince continues to build up our alumni community with the cooperation and support of the Alumni Advisory Council and Class Representatives. In addition, Vince will be demonstrating to donors the value of their financial support by means of creative and informative impact pieces. Vince has been happily married to Barbara Portzer (’95) since October 1998, and they are blessed with nine children. Contact Vince Criste by email at vince.criste@christendom.edu or by phone by calling 540.551.9180.

Adam Wilson
Director of Donor Engagement
Adam Wilson graduated from Christendom College in 2007 and returned in 2016 to take on the role of director of annual giving. In his new role, Adam manages the annual fund program and helps manage Christendom’s Principles publication. Before joining the Advancement team, he served in several roles at The Cardinal Newman Society, including as director of communications and as editor of The Newman Guide to Choosing a Catholic College. Adam earned his B.A. with a major in philosophy and a minor in theology. He subsequently earned his M.B.A. with a concentration in innovation from James Madison University. Adam is excited to contribute his skills to further the mission of Christendom College to Restore All Things in Christ. Contact Adam at adam.wilson@christendom.edu or 540.551.9199.

Leslie Mathews
Gift Processing & Acknowledgement Coordinator
Leslie is happy to assist any of our donors who may have questions regarding a donation they would like to give or have given. She will do all she can to honor your requests and make your experience with Christendom College a pleasant and memorable one. Contact Leslie Mathews by email at lmathews@christendom.edu or by phone by calling 540.551.9300.

Karl Petrick
Assistant Director of Advancement Services
Karl graduated from St. John’s College in 2008 with a BA in liberal arts. He joined the admissions team at St. John’s for the next two years, before earning his MS in library studies from Clarion University in 2011. After earning his master’s, Karl worked at Shenandoah University as the assistant director for data and records management for the college’s admissions office. As database and student employee manager, Karl is in charge of benefactor and alumni records for the college, responsible for managing all analytics and reports for the Advancement Office and keeping up-to-date on all things related to strategic data analysis for the college. In addition, Karl also hires, trains, and manages the student personnel of the advancement office, organizing and supervising the student calling program and mentoring the student employees as they progress through their collegiate careers. Contact Karl by email at karl.petrick@christendom.edu or by phone by calling 540.551.9258.

Glen McLeod
Prospect Development Manager
Before joining the Advancement Office in January 2014, Glen spent many years in academia, earning a BA in Liberal Studies focusing on Classical and British Literature, and a Master’s Degree in Theological Studies specializing in New Testament and Church History. As Research Analyst, he is responsible for fulfilling any requests for data that may prove beneficial to the Advancement Team and other staff members to continue to cultivate excellent relationships with our donors and friends. His interests include music that he is too young to appreciate but enjoys nevertheless, “Doctor Who” and its various spin-offs, and the history and liturgies of the Anglican Communion, particularly in relation to the Personal Ordinariates made possible by Pope-Emeritus Benedict XVI. Contact Glen McLeod by email at glen.mcleod@christendom.edu or by phone by calling 540.551.9264.

Roseanne Podlinsek
Data & Records Specialist
Roseanne serves as the primary processing point for constituent data entry and updates to the College’s central database and assists the DAOS by providing administrative and professional support in executing annual giving and day-to-day operations. Contact Roseanne Podlinsek by email at rpodlinsek@christendom.edu.

Thomas Ward
Donor Relations Officer
Thomas is a proud graduate of Christendom’s class of 2019. At Christendom, he earned his BA in Philosophy, served as the head male resident assistant his senior year and was awarded the Student Achievement Award upon graduation. Through his four years at Christendom, Thomas gained a wide variety of experiences and skills including financial and political internships in New York City and Capitol Hill. After his junior year abroad in Rome, Thomas felt deeply called to restore all things in Christ through his work post-graduation. He was delighted by the opportunity directly upon graduation to give back to his alma mater by serving Christendom’s wonderful benefactors, who made his time here as a student possible. Thomas enjoys building meaningful relationships with the Christendom Family on the east coast. He is fulfilled by empowering their passions, desires, and dreams and sharing with them the incredible and transformational impact they make on the lives of students here at Christendom. Thomas enjoys all things outdoors, horsemanship, rugby, and learning new trades. Contact Thomas at thomas.ward@christendom.edu or by mobile (203)-505-1808.

Isabella Reilly
Gift Planning Coordinator
Isabella Reilly ’20 graduated Summa Cum Laude and earned Valedictory honors majoring in Philosophy while minoring in Theology. Additionally, Isabella received the Outstanding Senior Philosophy Major Award. Isabella worked in the Advancement Office as a student worker all four years of her undergraduate. Isabella also had the privilege of working in the advancement office of her local Catholic Charities which further solidified her commitment to Catholic non-profit fundraising. Upon finishing her last college semester, Isabella immediately joined the Christendom Advancement Office. In her current position, Isabella is honored to steward legacy donors through supporting the Gift Planning Office. Her interests include art, music, dancing, sewing, and lots of reading. Contact Isabella at isabella.reilly@christendom.edu or by calling 540.551.9259.

Annie Sullivan
Donor Engagement Coordinator
Annie Sullivan is the Donor Stewardship Coordinator and is thrilled to return to work for her alma mater. She recently graduated from Christendom College in May 2020, earning her B.A. in Philosophy. In the classroom, Annie fell in love with studying the truth of the Catholic Faith, the beauty of human nature, and the goodness found in the mission to “restore all things in Christ.” While studying at Christendom, she took part in many of the college’s extracurricular opportunities, theater and the Student Activities Council (SAC) being among her favorites. In her senior year, Annie was honored to serve Christendom as the Student Body President and head of SAC. In her various leadership roles on campus, she learned to love helping others find what she discovered herself at Christendom—a well-rounded, wholly Catholic education that is applicable to life. It is with great honor that Annie came back to work on the Christendom staff, receiving the opportunity to give back to a community that has done so much for her. Contact Annie at anne.sullivan@christendom.edu or by calling (540) 551-9257.

Maria Bonvissuto
Donor Communications Specialist
Maria graduated summa cum laude from Christendom College in 2015 with a B.A. in History. Originally from Nashville, she has lived in Washington, DC since graduation and has worked in a variety of fields including book publishing and marketing and communications. She is excited to have the opportunity to support her alma mater’s mission by helping grow and foster relationships with Christendom’s generous benefactors. In her free time, Maria enjoys reading, writing, traveling, dancing, and playing classical guitar. Contact Maria at maria.bonvissuto@christendom.edu.

Rose Norris
Donor Engagement Coordinator
Rose Norris graduated Summa Cum Laude from Christendom College in May of 2022 with a degree in Philosophy. Joining the Advancement team immediately after graduation, she hopes to give back to the college that has given so much to her. Born and raised in Front Royal, VA, Rose has been a part of the Christendom community her whole life and has fostered a deep love for the college’s identity and mission. As a student, she worked for the college all four years, while playing soccer and volleyball, completing the Advanced Studies program, joining the Chester-Belloc Debate Society, and participating in many other organizations and events which gave her invaluable skills and experiences. She is honored to serve the college and foster relationships with the donors who made her education possible. Rose enjoys drawing and painting, playing sports, traveling, dancing, and spending good time with good friends. Contact Rose at rose.norris@christendom.edu or by calling (540) 551-9263.

Elizabeth Eller
Junior Donor Relations Officer
Elizabeth is a 2021 graduate of Christendom and is happy to have returned to her alma mater to help further Christendom’s mission. As a student, Elizabeth served as president of the student body and as the president of the Christendom’s pro-life club, Shield of Roses. Thanks to the wonderful formation at Christendom, Elizabeth fostered a love of service during her time as a student. She is excited to continue to continue that growth in her new position at the College, while helping advance the mission to restore all things in Christ. Contact Elizabeth at elizabeth.eller@christendom.edu.