Union, Logan County, Illinois (No number extant) Reproducible print, 1973 April Box 111 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 1995 AcquisitionReproducible Prints and Study Prints
Union Pacific (Kansas Pacific) Railroad Right-of-Way. Cheyenne Wells, Colorado (No number extant), 1971 Box 186 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011April 2010 Acquisition
Union Pacific Railroad Depot. Milford, Utah (CP-733), 1973 Box 21 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 1995 AcquisitionExhibition Prints
Union Pacific Railroad Grade Crossing, Clare, Humboldt County Iowa (611-182), 2011 Box 188 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 2012 Acquisition
Union Pacific Railroad Grain Train. West of Sharon Spring, Kansas (610-123), 2010 Box 187 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011May 2011 Acquisition
Union Pacific Railroad, Westbound Freight on Sherman Hill, West of Cheyenne. Sherman Hill, Wyoming (UP-249) Reproducible print, undated Box 92 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 1995 AcquisitionReproducible Prints and Study Prints
Union Pacific Tracks and Depot. Cheyenne Wells, Colorado (GP-922), 1971 Box 73 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 1995 AcquisitionExhibition Prints
Union Railroad Bridge, Monongahela River. Clairton, Pennsylvania (PB-567-397) Study print, 1967 May Box 96 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 1995 AcquisitionReproducible Prints and Study Prints
Union Transportation Co., Pennsylvania Railroad's Last Active Steam Locomotive 0-6-0 #5244. New Egypt, New Jersey (No number extant) Study print, 1961 Box 99 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 1995 AcquisitionReproducible Prints and Study Prints
Unionville Center, Ohio (LFC), 1964 Box 167 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library David Plowden photographs and papers, 1948-2011Photographs, 1948-2011July 2003 Acquisition