• 11 Memorial Library
• 1 College Library
• 1 Special Collections (Memorial Library)

• 21 Henry IV, King of England, 1367-1413
• 21 History
• 5 Shakespeare, William, 1564-1616
• 3 English drama
• 3 Historical drama
• 3 King Henry IV
• 2 King Henry IV. Part 2
• 2 Shakespeare, William, 1564-1616. Part 2
• 1 Drama
• 1 Historiography
• 1 King Henry IV. Part 1
• 1 Kings and rulers
• 1 Kings and rulers in literature
• 1 Shakespeare, William, 1564-1616. Part 1
• 1 Sources
• 1 Stage history
• 1 Study and teaching

• 19 Shakespeare, William, 1564-1616
• 3 Folger Shakespeare Library
• 3 Mowat, Barbara A.
• 3 Werstine, Paul
• 2 Davison, Peter, 1926-2022
• 2 Hodgdon, Barbara, 1932-2018
• 2 McEachern, Claire, 1963-
• 2 Weil, Herbert (Herbert S.)
• 2 Weil, Judith
• 1 Allio, René, 1924-1995
• 1 Bevington, David M
• 1 Bloom, Harold
• 1 Brooke, Tucker, 1883-1946
• 1 Folio Society (London, England)
• 1 Hacks, Peter, 1928-2003
• 1 Hemingway, Samuel Burdett, 1883-1958
• 1 Longstaffe, Stephen
• 1 Melchiori, Giorgio
• 1 Nickel, Gunther
• 1 Planchon, Roger, 1931-2009
• 1 Raffel, Burton

• 20 English
• 1 German

• 21 Great Britain

• 8 Historical drama
• 2 English drama
• 1 Handbooks, manuals, etc

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