Eileen O'Neill (1953-2017) was at the time of her death Professor of Philosophy at the University of Massachusetts-Amherst. A distinguished historian of early modern philosophy, O'Neill was instrumental in recovering the work of women philosophers who had been written out of the histories of early modern thought. She published numerous essays, reviews and encyclopedia entries about their work and edited the first modern edition of Margaret Cavendish's Observations on Experimental Philosophy as well as Feminist History of Philosophy: The Recovery and Evaluation of Women's Philosophical Thought, with Marcy Lascano.
Gary Ostertag, who was the partner and husband of Eileen O'Neill, is Professor of Medical Education at the Icahn School of Medicine at Mount Sinai and on the doctoral faculty of the PhD Program in Philosophy at the Graduate Center, CUNY. He publishes in the philosophy of language, the history of analytic philosophy, and bioethics, and is the editor of Meanings and Other Things: Themes from the Work of Stephen Schiffer (OUP) and Definite Descriptions: A Reader.