Mary McCoy graduated from Jac-Cen-Del in 1986. As fate would have it, foul trouble by the team's starting center in a game early in Mary's sophomore season caused Coach Maurice Meyer to go to the bench. His choice was Mary Simon. Mary responded that game by scoring in double figures and THAT performance propelled her into the starting role she would never relinquish. 

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Despite Jac-Cen-Del's long, rich, successful history in girls basketball, Mary, now 33 years post-high school graduation, still finds herself in the Top 10 in several categories. She ranks second all-time in career field goal percentage at 57%. Mary's career number of 862 total points and 505 rebounds over 65 games are 7th and 9th respectively on the prestigious, all-time list. She averaged 18 points per game her senior campaign which ranks her just outside the top ten in scoring at number eleven. During her days as a Lady Eagle, Mary was named team MVP twice, All-Star Conference twice, All-Sectional three times including MVP honors her senior year, and All-Regional one season. 

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After graduation from Jac-Cen-Del, Mary attended St. Mary's College where she obtained a Bachelor of Arts degree in Applied Mathematics. She later earned her Teaching Certification and a Masters Degree in Education. Currently, she is a math teacher at South Dearborn High School. Mary and her husband, Gary, reside in Holton.