W-Z, January 1894-January 1895 Box 8, Folder K-Z Bookmark Collection Context Mattatuck Museum Plume and Atwood Manufacturing Company Records, 1874-1895 and 1909-1957Correspondence, 1894-1895
X-328-V photo, circa 1930 Box 1, Folder 2 Bookmark Collection Context Mattatuck Museum Cairns Aircraft Research Files, 1929-2017 and undatedResearch Files, 1929-2017 and undated
"X-Ray, Pedi, Lab, Nursing" Picture Poster (Photocopies), bulk 1912, 1940, undated Box 2, Folder 17 Bookmark Collection Context Mattatuck Museum Waterbury Hospital School of Nursing Collection, 1904-2012Photographs, 1904-2004, undated
Y Bookmark Collection Context Mattatuck Museum Waterbury Manufacturing and Business Collection, bulk circa 1770-1984 and undated; bulk 1824-1890
Yale Alumni Weekly, March 15, 1899 with photo of Hon. Frederick J. Kingsbury on front page, 1899 Box 6, Folder E Bookmark Collection Context Mattatuck Museum Kingsbury Family Papers, 1783 - 1937Frederick J. Kingsbury
Yale Bill, 1844 Box 5, Folder E Bookmark Collection Context Mattatuck Museum Kingsbury Family Papers, 1783 - 1937Frederick J. Kingsbury
Yancovitz Brothers (2) Woolens, Silks and Dress Goods, 42 Bank Street Box 14, Folder 20 Bookmark Collection Context Mattatuck Museum Waterbury Manufacturing and Business Collection, bulk circa 1770-1984 and undated; bulk 1824-1890Y
Yank: The Army Weekly. May 4, May 11, May 18, and June 1, 1945 Box 8, Folder 4 Bookmark Collection Context Mattatuck Museum Waterbury Military Collection, bulk 1750-1959, 1998, 2007, 2014, 2017World War II, 1940-2017
Yearbook, 10th Annual Reunion, bulk 1934, 1936 Box 3, Folder 7 Bookmark Collection Context Mattatuck Museum Sacred Heart High School Records, 1922-2018Student Life Materials
Yearbook, 1943 Box 1, Folder 14 Bookmark Collection Context Mattatuck Museum Waterbury Hospital School of Nursing Collection, 1904-2012Yearbooks, 1943-1951, 1952-1973