SR. MARILYN BREWER, RSM has been in the education field since 1965. She entered the Sisters of Mercy in 1963 and taught grades 1-8 in various elementary schools in the Diocese of Buffalo. She has served as principal for St. John the Evangelist School, Our Lady of Mercy School, and Annunciation School in Elma. In 1998, she began teaching Theology to freshmen and sophomores at Immaculata High School for 13 years until her retirement in 2013. Presently she is the chair of Mercy Associates in Buffalo, Erie, Pittsburgh, and Rochester Dioceses.


KARA RENNIE CALDIERO ’07 earned her BSBA from Duquesne University with a dual major in Marketing and Supply Chain Management. Returning to Buffalo in 2011, she began her career with her family’s company, WNY Imaging Systems.  Starting as an account executive, she has since transitioned to the role of major account manager.  She and her husband Drew live in South Buffalo with their son Brooks and dog Patch.



KATE CALLAHAN '70 earned a Bachelor of Science in Nursing (BSN) from the University of Miami, a Master of Public Administration (MPA) in Healthcare Policy from Harvard University, and a Doctor of Philosophy (Ph.D.) in Leadership and Adult Education from Barry University.  Kate has a long list of accolades, including but not limited to the following: In 1999 she was the recipient of the Women's Business Journal's Women of Power Award and she was featured as one of Florida's 100 Women Leaders to watch in the "Miami Metro" Magazine; In 2006 she was the recipient of the American Red Cross Sara Hopkins Woodruff Chairman's Spectrum Award for community activism; In 2008 she won the Community Service award from the Miami- Dade County Health Department; In 2009 she was elected to a seat on the Coconut Grove Village Council and was Chairperson for 8 years; Kate was the Finalist of the Chamber of Commerce Health Care Heroes award; In 2012 she won the Trocaire College Distinguished Alumna Award for her work in Nursing and Community volunteerism; and in November 2015 Kate was recognized as a distinguished alumna of Mount Mercy Academy. Kate currently lives in Miami and has formerly lived in Chicago, Los Angeles, and Peru. These national and international perspectives will be invaluable for the Academy’s strategic planning.


MICHAEL DeLELLIS is the retired Director of Operations at Health Research Inc., Roswell Park division. (Not-forprofit corporation which administers research grants, contracts, and Roswell Park’s technology transfer program).  His daughter Kimberly graduated in 1994. Mike has served as chair of the first Catherine McAuley Gala in 1994 and chair of the athletic department fundraiser in 1993.  Presently, he serves as “Voice of the Magic” for Mount Mercy basketball since 1991, chairs the Mount Mercy Athletic Department Committee, and is a member of the Board of Trustees’ Institutional Advancement/Marketing committee.


AMELIA GREENAN ’14 served as a school ambassador, class president and student government Meet the Board of Trustees www.mtmercy.org 21 president her senior year. She graduated from Canisius College while serving as president of the Undergraduate Student Association and as a member of the Board of Trustees, Board of Regents, and Alumni Board of Directors.  Amelia is currently Chief of Staff to the West Seneca Town Supervisor and a Member of the Zoning Board of Appeals. Prior to that, she served as Director of Special Projects & Communications for Erie County Clerk Mickey Kearns and as secretary to the Ethics Board for the Town of West Seneca.  She previously spent three years as a NYS Assembly aide to Kearns.  She has been active in the pro-life movement having spearheaded a “Pregnant on Campus Initiative” at Canisius. Amelia also speaks to young people at local parishes about the pro-life perspective.


JANE MICHALEK HARRINGTON ’92 is a practicing attorney with an office in West Seneca, NY. Her daughters, Olivia ’18, and Grace ’20 are both recent graduates of Mount Mercy.  Her son, Ryan, is currently a junior at St. Francis High School. Jane graduated from Canisius College in 1995 and SUNY University at Buffalo School of Law in 1998.  In addition to being an active Mount Mercy alumna, Jane is also a trustee for Our Lady of Victory Basilica and serves on its parish council, finance council, and school board. 


MARY CLARE KEENAN ’79 After graduating from St. Bonaventure University Mary Clare taught high school English for several years before becoming one of the newly created professions, that of a paralegal.  In addition to being a paralegal, she also managed the law firm of Heimerl, Keenan & Longo, later to become The Keenan Law Firm and Laufer Keenan, PLLC. Mary Clare is a licensed New York State Title Insurance Agent and until retirement was president of Homeworth Settlement Services, Inc. 


EILEEN LEARY ’73 is a graduate of St. Martin’s school (now known as Notre Dame Academy).  With an AAS from Trocaire College in Radiologic Technology and a BS in Business Management from SUNY University at Buffalo, she has worked 41 years in healthcare. Retired in 2016 as the chief operating officer of Buffalo Medical Group, she continues to consult in healthcare.  She has run numerous half marathons and the Dublin Marathon and, in retirement, enjoys travel, golf, pickleball, gardening, and keeping up with family and friends. 


SR. CRISTEL MEJIA, RSM is a graduate of Trocaire College, California State University, and the University at Buffalo where she received her Ph.D. in Spanish Language and Literature. Sister Cristel has over 36 years of teaching experience.  She taught Spanish at Mount Mercy Academy from 1982-1983, then again from 1987-2000, and was the recipient of the diocesan teacher of the year in 1990. She moved on to teach Spanish at the University of Buffalo and D’Youville and is now teaching Spanish at ECC South and Niagara University.  Sister Cristel is a member of the Modern Language Association of America, the American Council of the Teaching of Foreign Languages, and the Sociedad Nacional Hispánica, Sigma Delta Pi.


MICHELE SIXT MELLIGAN ’92 became Mount Mercy Academy’s 16th Principal in the summer of 2020, becoming Head of School later that year. Michele holds a master’s degree in Education and an Advanced Leadership Certificate, both from Canisius College. She has over 20 years of experience as a school counselor in the Kenmore-Town of Tonawanda school district and is the former executive director of Empower Girls Buffalo. Michele is a native of South Buffalo, where she currently resides with her husband and three girls, one of whom currently attends and two who are future Mercy girls!


SR. MARIAN MULLEN, RSM believes, as Catherine McAuley did, that “Education makes possible a life of dignity and self-worth.”  Sister Marian has spent much of her educational ministry at Trocaire College where she has served in various roles in the Student Affairs Division. In her current position as coordinator of the Global Achievements Program, she welcomes students who were born beyond the continental USA.  Sister Marian previously served on the leadership team of the Sisters of Mercy and on the boards of Gerard Place and CHS Long Term Care. She is a current board member of NativityMiguel Middle School.  Sister Marian is eager to share the good news of Mount Mercy Academy and its achievements with the broad WNY community.


SYDNIE ARIA PERKINS joined the Mercy Education Schools of America (MESA) board in 2021. She is a professional digital marketer, non-profit leader, and performer. After attending Catholic schools and receiving a Jesuit education from Canisius College for her graduate and undergraduate degrees, Sydnie is passionate about the Mercy mission and service of the poor. Following Jesus, one step at a time is her life's journey. 


THOMAS SELLERS is Vice President of Charles J. Sellers & Co., Inc., an Insurance Agency/ Broker/Third Party Administrator located in Hamburg, N.Y. and celebrating 100 years in business. Tom is proud to be the father of four Mercy graduates. He is a graduate of Canisius College and  SUNY University at Buffalo School of Law.  


THOMAS VIVIAN is a graduate of Bishop Timon-St. Jude and Canisius College.  He is the Vice President and Senior Portfolio Advisor for Merrill Lynch in Williamsville, NY.  He holds multiple certifications and licenses:  Certified Financial Planner (CFP ®); Certified Plan Fiduciary Advisor (CPFA®); Chartered Retirement Planning Counselor (CRPC ®); Sports & Entertainment Accredited Wealth Management Advisor (SE-AWMA ™); and Series 7 & 66 licensed financial professional. Thomas has a strong connection to Mount Mercy Academy, as his mother and two sisters are graduates and active members of our alumnae.


BRIANNA WILSON '08  graduated from the University at Buffalo with her Bachelor of Science in Business Administration with a concentration in Human Resources. She has over ten years of experience as a Human Resource Professional, currently working at Evans Bank as an Assistant Vice President, Employee Experience Business Partner where she helps to assist teams in the development and facilitation of associate learning and development opportunities, talent strategy, performance management, succession planning as well as providing insight on organizational and change management techniques. In her time at Evans, Brianna acts as a member of the DEI Steering Committee alongside members of the Evans Executive team. In addition to her professional career, Brianna holds the Professional in Human Resource (PHR) certification. She previously served on Mount Mercy’s Alumni Board since 2015 and is a soccer coach for the Hamburg Monarchs U8 soccer team.



"Mount Mercy has positively changed my life forever. Through the inviting community, I was able to grow as a woman, as a daughter, as a friend, and as a member of society. Throughout my time here I have gained an education in both academic areas and life in general through the school's ongoing efforts to educate students on gender inequality, racial injustice, and environmental crisis'. Furthermore, Mercy has given me the space to gain confidence that 4 years ago I never would have guessed I would have. Mount Mercy has helped me take that initial step toward becoming the strong woman of color I am today. At Mercy you are more than just a student, you are whoever you wish to be."

Melina Courtney

Class of 2022

"My future, success, and the ability to be an empowered woman in society come from Mount Mercy. My school is a strong foundation for my role in life. From attending Mount Mercy, I can say with confidence, that I will graduate with the mindset that I can accomplish anything. Mercy is my home and my sanctuary to be whoever I want. Mount Mercy has been bringing forth generations of strong intellectual women into the world, and I am more than honored to be one of them. Mercy teaches girls more than academics, but also about the world around us. As a mercy community, we give back to the world because it is our home. From my four years at Mercy, I have been educated on pushing for equality and peace and the understanding that there is no limit to what I can do. I have the confidence to go out in the world and make a difference because being a Mercy girl has given me that opportunity. "

Cassidy Reid

Class of 2022

"Mercy is more than just a school. Mercy is my second home and a shoulder to lean on. Mount Mercy has given me the confidence and resources to pursue my passions and make the world a more inclusive place, propelling me to take strides into male-dominated fields. Mercy blessed me with an environment to grow intellectually and in the community, giving me the foundation to make a tangible impact while making lifelong friendships."

Adrianna Awald

Class of 2022

College Acceptances

Where our Mercy Girls go