United Kingdom
British Library, London
Sheffield University, Sheffield
University of Cambridge, Cambridge
University of Edinburgh, Scotland
University of Manchester, Manchester
University of Nottingham, Nottingham
University of Oxford, Oxford
York Minster, York
United States
Brown University, Providence RI
Boston College, Newton MA
Columbia University, New York NY
Harvard University, Cambridge MA
Huntington Library, San Marino CA
Morgan Library & Museum, New York NY
New York University, New York NY
Newberry Library, Chicago IL
University of Florida, Gainesville FL
University of Illinois, Urbana-Champaign, IL
University of Kansas, Lawrence KS
University of North Carolina – Chapel Hill, NC
University of Pennsylvania, Philadelphia PA
University of Texas at Austin, TX
University of Virginia, Charlottesville VA
Yale University, New Haven CT
Elsewhere
McGill University, Montreal, Canada
University of Toronto, Canada
Trinity College, Dublin, Ireland