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 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 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 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, James Y. C, 1943-1945 1 folder Box 81, Folder 3 Repository Seeley G. Mudd Manuscript Library » Public Policy Papers » United Service to China Records, 1934-1967 (mostly 1941-1950) » Series XIII, General Correspondence, 1941-1963 (mostly 1941-1950)
File Yerkes, Robert M, 1943-1945 1 folder Box 68, Folder 43 Repository Firestone Library » Manuscripts Division » Henry Norris Russell Papers, 1894-1980 (mostly 1894-1956) » Series 2: Incoming Correspondence, 1026-2937
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 Y, Gen. Corresp, 1922-1953 1 folder Box 29, Folder 9 Repository Firestone Library » Manuscripts Division » Julian P. Boyd Papers, 1935-1980
File Y General, 1945-1983 1 folder Box 38, Folder 21 Repository Firestone Library » Manuscripts Division » T. S. Matthews Papers, 1910-1991 (mostly 1940-1991) » Series 3: Correspondence, 1931-1990
File Yiddish Center, New York, 1933-1966 1 folder Box 121, Folder 18 Repository Firestone Library » Manuscripts Division » P.E.N. American Center Records, 1922-2008 (mostly 1930-1989) » Series 9: Centers and Branches, 1926-1991 » Subseries 9A: International Centers, 1926-1989