1902-1904 - Fort Wayne & Southwestern Traction Co. (to Wabash)
1901-1903 - Wabash River Traction Co. (Wabash-Logansport)
1903-1904 - Fort Wayne Lima Logansport & Lafayette Traction Co.
1906-1906 - Fort Wayne Bluffton & Marion Traction Co. (Fort Wayne-Bluffton)
1907-1907 - Lafayette & Logansport Traction Co.
1904-1911 - Fort Wayne & Wabash Valley Traction Co.
1911-1920 - Fort Wayne & Northern Indiana Traction Co.
1920-1930 - Indiana Service Corp.
1930-1950 - Indiana Railroad.
1938 - buses introduced
1941 - interurban trains replaced with buses
1950-1954 - Indianapolis & Southeastern Trailways
1954-1983 - Southeastern Trailways
Interurban lines:
Fort Wayne-Wabash (constructed 1902, discontinued/replaced with buses 1938)
Wabash-Peru (constructed 1901, discontinued/replaced with buses 1938)
Peru-Logansport (constructed 1902, discontinued 1932)
Logansport-Lafayette (constructed 1907, discontinued 1932)
Lafayette-Battle Ground (constructed 1905, discontinued 1922)
Fort Wayne-Bluffton (constructed 1906, discontinued/replaced with buses 1941)
INDIANA SERVICE CORPORATION SUBSIDIARIES:
1907-1916 - Fort Wayne & Springfield Railway Co. (Fort Wayne-Decatur)
1916-1927 - Fort Wayne & Decatur Traction Co.
1906-1914 - Marion Bluffton & Eastern Traction Co.
1914-1926 - Marion & Bluffton Traction Co.
1926-1930 - Indiana Service Corp.
1930-1931 - Indiana Railroad
1907-1913 - Toledo & Chicago Interurban Railway Co.
1913-1924 - Fort Wayne & Northwestern Railway Co.
1924-1930 - Indiana Service Corp.
1930-1937 - Indiana Railroad
Interurban lines:
Fort Wayne-Decatur (constructed 1907, discontinued 1927)
Bluffton-Marion (constructed 1906, discontinued 1931)
Fort Wayne-Kendallville/Waterloo (constructed 1906, discontinued 1937)
1900-1902 - Indianapolis & Greenfield Rapid Transit Co.
1902-1907 - Indianapolis & Eastern Railway Co. (to Richmond)
1903-1907 - Indianapolis & Martinsville Rapid Transit Co.
1903-1907 - Indianapolis & Northwestern Traction Co. (to Lafayette)
1907-1907 - Indianapolis & Western Railway Co. (to Danville)
1907-1912 - Indianapolis Crawfordsville & Western Traction Co.
1907-1930 - Terre Haute Indianapolis & Eastern Traction Co.
1930-1950 - Indiana Railroad.
1940 - interurban trains replaced with buses
1950-1954 - Indianapolis & Southeastern Trailways
1954-1983 - Southeastern Trailways
Interurban lines:
Indianapolis-Dunreith (constructed 1900, discontinued 1932)
Dunreith-Richmond (constructed 1903, discontinued 1937)
Dunreith-New Castle (constructed 1903, discontinued 1937)
Indianapolis-Terre Haute (constructed 1900-1908, discontinued/replaced with buses 1940)
Terre Haute-Clinton (constructed 1903, discontinued 1931)
Terre Haute-Sullivan (constructed 1906, discontinued 1931)
Terre Haute-Paris (constructed 1907, discontinued 1932)
Indianapolis-Lafayette (constructed 1903, discontinued 1930)
Lebanon-Crawfordsville (constructed 1904, discontinued 1930)
Indianapolis-Crawfordsville (constructed 1907, discontinued 1930)
Indianapolis-Martinsville (constructed 1903, discontinued 1930)
Indianapolis-Danville (constructed 1906, discontinued 1930)
1904-1905 - Indiana Northern Traction Co. (Marion-Wabash)
1903-1906 - Muncie Hartford & Fort Wayne Railway (Muncie-Bluffton)
1902-1906 - Dayton & Muncie Traction Co. (Muncie-Union City)
1910-1912 - Indianapolis New Castle & Toledo Electric Railway Co.
1912-1912 - Indianapolis New Castle & Eastern Traction Co.
1906-1916 - Muncie & Portland Traction Co.
1930-1950 - Indiana Railroad.
1938 - buses introduced
1941 - interurban trains replaced with buses
1950-1954 - Indianapolis & Southeastern Trailways
1954-1983 - Southeastern Trailways
Interurban lines:
Indianapolis-Anderson-Muncie (constructed 1901, discontinued/replaced with buses 1941)
Muncie-Bluffton (constructed 1903, discontinued/replaced with buses 1941)
Anderson-Middletown (constructed 1905, discontinued 1930)
Anderson-Marion (constructed 1897-1898, discontinued 1932)
Marion-Wabash (constructed 1904, discontinued 1930)
Alexandria-Tipton (constructed 1899-1902, discontinued 1931)
Indianapolis-Kokomo (constructed 1903, discontinued/replaced with buses 1938)
Kokomo-Peru (constructed 1904, discontinued/replaced with buses 1938)
Kokomo-Logansport (constructed 1904, discontinued 1930)
Indianapolis-New Castle (constructed 1910, discontinued 1937)
New Castle-Muncie (constructed 1913, discontinued 1941)
Muncie-Union City (constructed 1905, discontinued 1930)
Muncie-Portland (constructed 1906, discontinued 1930)
1900-1903 - Indianapolis Greenwood & Franklin Railroad Co.
1903-1912 - Indianapolis Columbus & Southern Traction Co.
1912-1930 - Interstate Public Service Co.
1930-1941 - Indiana Railroad
Interurban line:
Indianapolis-Louisville (constructed 1901-1907)
Abandoned Seymour-Louisville 1939, Indianapolis-Seymour 1941
1902-1905 - Indianapolis Shelbyville & Southeastern Traction Co.
1905-1906 - Indianapolis & Southeastern Traction Co.
1906-1929 - Indianapolis & Cincinnati Traction Co.
1929-1938 - Indianapolis & Southeastern Railroad Co.
1932 - interurban trains replaced with buses
1938-1954 - Indianapolis & Southeastern Trailways
1954-1983 - Southeastern Trailways
Interurban lines:
Indianapolis-Connersville (completed 1906)
Indianapolis-Greensburg (completed 1907)
Discontinued/replaced with buses 1932.
Bus line:
Indianapolis-Connersville
Indianapolis-Greensburg-Cincinnati
Introduced 1932
Information on how the Indiana Railroad bus operations evolved into part of the Trailways bus system.