Mercersburg Academy, private school in southern Pa., gets $100 million donation from alumna

A college prep academy in southern Pennsylvania has received a $100 million gift, one of the largest donations ever made to an independent school in the U.S.

Mercersburg Academy announced the contribution from alumna Deborah Joy Simon on Thursday.

Simon graduated from the private boarding school in 1974. Since then, she has worked for her family's global real estate firm and in the entertainment business.

The gift is part of the school's ambitious $300 million fundraising campaign. Officials want to boost financial aid, support faculty development, and enhance facilities and programs.

Mercersburg Academy serves nearly 450 students in grades nine through 12. Notable alumni include Oscar winners Jimmy Stewart and Benicio del Toro.