found: Phone call to Co., 1/25/79 (In 1972, name chgd. from Chicago and North Western Railway Company to Chicago and North Western Transportation Company)
found: Its Annual report, 1968: p. 4 (7-1-68, Chicago Great Western Railway Company merged into Chicago and North Western Railway Company)
found: Kaysen, J.P. The railroads of Wisconsin, 1826-1936: p. 14 (Chicago, St. Paul and Fond du Lac Rail Road Company; deeded, 1859, to Chicago and North Western Railway Company)
found: Dorin, P. Chicago & North Western power, c1972 (Chicago and North Western Railway Company; C&NW; Galena and Chicago Union Railroad (1st annual mtg. 1848) predecessor of Chicago and North Western Railway Company)
found: Drury, G.H. Train-watcher's guide to North Amer. railroads, 1984 (Galena & Chicago Union Railroad chartered 1836; in 1864 consolidated with Chicago & North Western Railway; in 1855 Chicago, St. Paul & Fond du Lac org.; reorg. 1859 as Chicago & North Western Railway; acquired other railroads; notable among them the Chicago, St. Paul, Minneapolis & Omaha; in 1950s & 1960s C&NW merged with several smaller railroads; North Western Employees Transportation Co. [no publs. in LC] inc. 1970; in 1972 took name Chicago & North Western Transportation Company and purchased assets of Chicago & North Western Railway)
found: Sorensen, S. Sioux City, 1982 (Sioux City and Pacific Railroad Company came under control of Chicago & Northwestern by end of 19th c.)
found: Railroads of North America, 1977 (Chicago & Northwestern successor to Fremont, Elkhorn and Missouri Valley Railroad)
found: Gross, J. Railroads of N.A., 1977 (Des Moines & Minneapolis Railroad Company and Des Moines Valley Railroad Company; became part of Chicago & Northwestern Railway Company in 1884)
found: Northwestern shop news, Feb.-Mar. 1931, surrogate: caption (C. & N.W. R.R.) p. 1, etc. (C. & N.W.; C. & N.W. Railroad)
found: NUCMC data from Codington Hist. Soc. for Codington County and railroading history of northeastern S.D. collection, ca. 1878-ca. 1950 (Minneapolis & St. Louis Railroad; later CNW)
found: Drury, G.H. Hist. guide to NA railroads, c1985 (Minneapolis & St. Louis Railroad; purchased by Chicago & North Western in 1960)
found: Wyoming and Northwestern Ry., 1907: t.p. (North-Western Line) map (Chicago & North-western Railway)
found: Encyclopedia of western railroad history: v. 2, p. 405 (Wyoming & Northwestern Railway Company; conveyed by deed to C&NW Ry. Co. on April 30, 1920)
found: Milwaukee division surburban service : [time table], Apr. 26, 1953: t.p. (Chicago and North Western System; Chicago and North Western Railway)
notfound: NUCMC data from NJ Hist. Soc. for Blair, J.I. Papers, 1830-1896 (Sioux City and Pacific Railroad; Fremont, Elkhorn and Missouri Valley Railroad);NUCMC data from Old Dartmouth Hist. Soc. Whaling Mus. Lib. for Mandell family. Papers, 1748-1909 (Des Moines Valley Railroad)