information provided by Marian Catholic High School
Sister Mary Jo is known as the “Curveball Queen.” She signed 260 baseball cards that will be inserted into random Topps trading card packs.
During Marian Catholic High School night at Guaranteed Rate Field last August, Sister Mary Jo took the mound and threw a perfect pitch, earning the respect and admiration from baseball fans worldwide. In learning that Sr. Mary Jo is a lifelong baseball fan and an accomplished athlete in her own right, Topps felt she deserved to be one of their featured autograph subjects for the 2019 Topps Allen and Ginter Baseball Cards.

The card signing took place at Marian Catholic High School, 700 Ashland Avenue, Chicago Heights.
Related:
- Sister Mary Jo pitches perfect strike at Guaranteed Rate Field (August 2018 article)
- Sister Mary Jo takes the mound again at Guaranteed Rate Field (September 2018 article)
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