Railroad company. Corporate records arranged in the five functional subgroups of executive files; legal files; engineering records; property accounting; and real estate and industrial development records. Record series of the executive subgroup include minutes (1905–1915, 1947–1975); annual reports (1884–1908, 1915–1932, 1941, 1948–1975); subject files (1900–1984); Executive Committee minutes (1953–1955, 1971–1974); monthly letters to the Board of Directors (1921–1972); correspondence (1913–1976); corporate files of associated railroads (1910–1975); liquidation files (1968–1984); and stock ledgers (1853–1864, 1906–1933). In the legal subgroup are subject files (circa 1925–1979); correspondence (1969–1976); contracts (1900–1910, 1930, 1950–1960); merger files, Union Pacific (1963–1975); merger files, other railroads (1920–1980); litigation files (1930–1980); legislation files-state level (1908–1920); and liquidation files (1975–1984). The engineering subgroup consists of projects files (1890–1975); graphics, including maps, tables, station blueprints, track layouts, bridges, engines and cars, total-system diagrams, and statistical charts (circa 1890–1980); structural notes (1916–1917); and capital expenditures (1940–1941, 1947, 1966–1968). In the property accounting subgroup are grand summaries (1942–1972); valuations (1915–1981); money control files (1903–1904, 1935–1942); original cost data files (1934–1941); general balance sheet statements (1959–1964); and revenues and expenditures files (1902–1903, 1928–1944). The real estate and industrial development subgroup includes real estate sales files (1937–1974); abstracts of title (1859–1902, 1911–1931); industrial area files (1956–1977); lease records (1902–1925); quit claim deeds and tax records (1890–1907); land contracts (1941–1943); and station master files (1979).