File Y, Gen. Corresp, 1922-1953 1 folder Box 29, Folder 9 Repository Firestone Library » Manuscripts Division » Julian P. Boyd Papers, 1935-1980
File "Ygdrasil", 1946 1 folder Box 108, Folder 10 Repository Firestone Library » Manuscripts Division » Ridgely Torrence Papers, 1833-1952 (mostly 1890-1951) » Series 5: Printed Matter and Clippings, 1896-1946
File Yerman and Garofalo, circa 1885-1948 1 folder Box 140, Folder 21 Repository Firestone Library » Manuscripts Division » Harrison S. Morris Papers, 1784-1970 (mostly 1895-1935) » Series 2: Correspondence, 1879-1948 » Subseries 2A: General, 1885-1948
File Yen Foreign Exchange, Currency Savings Plan, 1946-1948 1 folder Box 9, Folder 2 Repository Seeley G. Mudd Manuscript Library » Public Policy Papers » Tristan E. Beplat Papers, 1936-1953 (mostly 1945-1948) » Series 4: Economic Subject Files, 1936-1948
File Yen, Dr. W. W, 1940s 1 folder Box 83, Folder 81 Repository Seeley G. Mudd Manuscript Library » Public Policy Papers » United Service to China Records, 1934-1967 (mostly 1941-1950) » Series XIV, Biographical Files, 1936-1947 (mostly 1940s)
File Yen, Dr. F. C, 1940s 1 folder Box 83, Folder 80 Repository Seeley G. Mudd Manuscript Library » Public Policy Papers » United Service to China Records, 1934-1967 (mostly 1941-1950) » Series XIV, Biographical Files, 1936-1947 (mostly 1940s)
File Yemen, 1927-1947 3 folders Box 24, Folder 3-5 (Includes correspondence and reports to Imam Yahia and Charles R. Crane) Repository Seeley G. Mudd Manuscript Library » Public Policy Papers » Karl S. Twitchell Papers, 1911-1967 » Series 3: Topical Files, 1913-1966
File Yeats, William Butler: The Poems of William Butler Yeats, Variorum Edition, 1935-1956 1 folder Box 1332, Folder 21 Repository Firestone Library » Manuscripts Division » Archives of Charles Scribner's Sons, 1786-2004 (mostly 1880-1979) » Series 27: Subscription Department Records (gaps), 1878-1964 » Subseries 27A: Publication Files, 1878-1964
File Yeats, William Butler, circa 1885-1948 1 folder Box 140, Folder 20 Repository Firestone Library » Manuscripts Division » Harrison S. Morris Papers, 1784-1970 (mostly 1895-1935) » Series 2: Correspondence, 1879-1948 » Subseries 2A: General, 1885-1948
File Yeats, William Butler, 1946, 1949, 1953-1955 1 folder Box 243, Folder 3 Repository Firestone Library » Manuscripts Division » Archives of Charles Scribner's Sons, 1786-2004 (mostly 1880-1979) » Series 3: Author Files, 1768-1989 » Subseries 3B: Author Files II, 1907-1981