No. 34: Mica Ertegun

Amount donated in 2012: about $41-million

Beneficiary: University of Oxford

Background: Ms. Ertegun co-founded MAC II, an interior-design firm. She is the widow of Ahmet Ertegun, the founder of Atlantic Records, who died in 2006.

Ms. Ertegun pledged about $41-million to the University of Oxford to endow scholarships for graduate students in the humanities.