	Elected a Fellow of the Society of Antiquaries of London (FSA) in 2006, he is a member of the Athenaeum Club (London) and of the Johnsonians (New York) – a society he has chaired three times. Wendorf served as a trustee of the Bath Royal Literary and Scientific Institution, and continues as a trustee of the American Museum. He was on the board of managers of the Lewis Walpole Library (Yale University). He previously served as a trustee of the Museum of Fine Arts, Boston (1999–2009), the Latin School of Chicago (1986–89), and the Shady Hill School, Cambridge, Massachusetts (1998–2000).