Jonathan D. Katz, presenting his paper The Sexuality of Abstraction: Agnes Martin " on January 29, 2011 at the Smithsonian's National Portrait Gallery. His presentation was part of the scholarly symposium "Addressing (and Redressing) the Silence: New Scholarship in Sexuality and American Art" which presented papers from 11 scholars in the fields of art, art history, performance art, and social history. This symposium was presented in conjunction with the exhibition "Hide/Seek: Difference and Desire in American Portraiture." Jonathan D. Katz is director of the doctoral program in visual studies at the State University of New York—Buffalo; an honorary research faculty member at the University of Manchester, UK; co-curator of the exhibition ―Hide/Seek‖; and co-author of its accompanying book. He was founding director of the Larry Kramer Initiative for Lesbian and Gay Studies at Yale University and founding chair of the very first department of lesbian and gay studies in the United States, at City College of San Francisco. Here, he also co-founded the activist group Queer Nation, San Francisco, and founded both the Queer Caucus of the College Art Association and the Harvey Milk Institute.