Negatives
name: label: Collection Creator
content: Baltimore and Ohio Railroad Company
label: Collection Author
content: Garrett, John W. (John Work), 1820-1884
label: Collection Author
content: Latrobe, Benj. H. (Benjamin Henry), 1807-1878
setName: label: See more items in
content: Baltimore and Ohio Railroad Records
unitdate: label: Date
content: 1850-1983
label: Date
content: bulk 1920-1939
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.1086, Series 9
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents
content: Series 9, Negatives, 1850-1983 (bulk 1920s-1930s), is divided into five subseries: Subseries 1, Glass plate negatives (numbered and unidentified), undated; Subseries 2, Glass plate negatives (numbered), 1850-1957 (bulk 1920s-1930s); Subseries 3, Negatives by number, undated; Subseries 4, Negatives by location, 1870; 1978-1983; Subseries 5, Negatives by subject, 1922-1930s, and undated.

The series includes negatives (both glass plate and transparencies) documenting a wide range of activities associated with the B&O Railroad. Many of the negatives, while associated with a number, are undated and have no identifying documentation.  Many of the negatives arranged by location were created during the late 1970s by Smithsonian staff.