Beaver County Educational Trust Hall of Fame Inductee

Sister Mary Thaddeus Markelewicz was honored for decades of educational and leadership service.

Sister Mary Thaddeus Markelewicz, former President and CEO of McGuire Memorial, and Dr. Don Sheffield, dedicated McGuire Memorial board member, have been inducted into the Beaver County Education Hall of Fame!

On May 6, the Beaver County Educational Trust hosted its annual Hall of Fame event, Coming Together for Education—a celebration of individuals whose contributions to learning and leadership continue to shape the future for students and educators across Beaver County.

Among the honored inductees was Sister Mary Thaddeus Markelewicz, a Felician Sister whose years of service and education spans more than six decades. From 1967 to 1979, Sister Thaddeus taught in the Pittsburgh and Cleveland dioceses, where she shared her love of learning and the Catholic faith with her students. She later served as President and CEO of McGuire Memorial in New Brighton for 31 years. Under her leadership, the organization grew from serving 99 children and families to reaching over 250 individuals through five impactful programs.

Please join us in congratulating Sister Thaddeus Markelewicz and all the 2025 inductees on this well-deserved honor. Their achievements remind us of the lasting impact of dedication, compassion and a lifelong love of learning.


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Serving where needed since 1874

Founded in Poland in 1855, the Felician Sisters are a congregation of women religious inspired by the spiritual ideals of their foundress, Blessed Mary Angela Truszkowska, and Saints Francis of Assisi, Clare of Assisi and Felix of Cantalice. Arriving in North America in 1874 following Blessed Mary Angela’s directive “to serve where needed,” they helped to weave the social service system. Today, the Felician Sisters founded, sponsor or support through the presence of our sisters, more than 40 ministries – all continuing to evolve to meet the needs of the people they serve.

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  • Felician Sisters of North America is a 501(c)3 tax-exempt organization.
  • EIN 27-1282473
Felician Sisters of North America