The Chronicle of Philanthropy has released its annual list of America's biggest donors of 2012. Take a look at the 15 most generous donors.
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13. Michael Moritz and Harriet Heyman. Donations: $116.4 million. Moritz is chairman of venture-capital firm Sequoia Capital. His wife, Heyman, is a writer at The New York Times. Their largest donation went to the University of Oxford.