Mark Yoest:
CLASS OF 1974
![Mark Yoest's Classmates® Profile Photo](https://images.classmates.com/pho301/U/K/f/q/164175641_display.jpg)
Thomas Jefferson High SchoolClass of 1974
Jefferson hills, PA
Mark's Story
Mark's schools include Thomas Jefferson High School.
Music Mark lik...Expand for more
es includes Classic rock. TV shows Mark likes include American Idol.
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Yearbooks
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Reunions
Photos
![Mark Yoest's Classmates profile album](https://images.classmates.com/pho301/U/K/f/q/164175641_display.jpg)