This is a listing of opening dates of all segments of rapid transit systems predating WW2. Service details are not provided in most cases, as they are unknown or sketchy at best. Names of stations are the current (or final) as many street names have changed over the years, and again details are many times scarce and/or unavailable.

CHICAGO IL Metropolitan West Side Elevated RR Metropolitan West Side Elevated Ry (02-03-99) Chicago Rapid Transit Co (01-09-24) 05/06/1895 Began Logan Square Line service between CANAL and DAMEN 05/15/1895 Extended from Canal to FRANKLIN 05/25/1895 Extended from Damen to LOGAN SQUARE 06/17/1895 Began Garfield Park Line service between Franklin and CICERO 07/29/1895 Began Humboldt Park Line service between Franklin and LAWNDALE 08/28/1895 Began Douglas Park Line service between Franklin and 18TH 09/08/1896 Extended Douglas Park Line from 18th to WESTERN 10/11/1897 Closed Franklin terminal, extended all routes to Inner Loop 03/10/02 Extended Douglas Park Line from Western to LAWNDALE 06/16/02 Extended Douglas Park Line from Lawndale to PULASKI 08/17/02 Extended Garfield Park Line from Cicero to LARAMIE 10/03/04 Rerouted some Mon-Fri rush service from all routes into WELLS ST TERMINAL 03/11/05 Extended Garfield Park Line from Laramie to DESPLAINES over Chicago Aurora & Elgin RR tracks 05/22/07 Extended Douglas Park Line from Pulaski to KENTON 12/16/07 Extended Douglas Park Line from Kenton to CICERO 08/16/10 Extended Douglas Park Line from Cicero to LARAMIE 08/01/12 Extended Douglas Park Line from Laramie to CENTRAL 08/01/15 Extended Douglas Park Line from Central to LOMBARD 03/16/24 Extended Douglas Park Line from Lombard to OAK PARK 10/01/26 Extended Garfield Park Line from Desplaines to ROOSEVELT via CA&E tracks 12/01/30 Extended Garfield Park Line from Roosevelt to CERMAK/MANNHEIM via CA&E tracks Roster: 100-199 Pullman 1894 (trailer) to CRT 2100-2199 200-224 Pullman 1895 (trailer) to CRT 2200-2224 225-249 Pullman 1897 (trailer) to CRT 2225-2249 250-267 Harlan & Hollingsworth 1899 (trailer) to CRT 2250-2267 268-311 AC&F 1900 (trailer) to CRT 2268-2311 312-340 AC&F 1901 (trailer) to CRT 2312-2340 500-511 AC&F 1900 (trailer) to CRT 2500-2511 512-520 AC&F 1901 (trailer) to CRT 2512-2520 701-755 Barney & Smith 1894 to CRT 2701-2755 756-763 Barney & Smith 1898 to CRT 2756-2763 764-781 Barney & Smith 1899 to CRT 2764-2781 782-789 Jewett 1901 to CRT 2782-2789 790-812 Jewett 1904 to CRT 2790-2812 813-857 AC&F 1904 to CRT 2813-2857 858-907 Pullman 1906 to CRT 2858-2907 908-927 Pullman 1907 to CRT 2908-2927 08/08/03

CHICAGO & SOUTH SIDE RAPID TRANSIT CO SOUTH SIDE ELEVATED RR (04-07-1897) CHICAGO RAPID TRANSIT CO (01-09-24) 06/06/1892 Began Jackson Park Line service CONGRESS to PERSHING, using steam locomotives 08/15/1892 Extended service from Pershing to 47TH 10/01/1892 Extended service from 47th to GARFIELD 01/22/1893 Extended service from Garfield to 61ST 04/23/1893 Extended service from 61st to DORCHESTER 05/01/1893 Extended service from Dorchester to WORLD'S FAIR 10/10/1893 Cut back from World's Fair to JACKSON PARK with closing of fair 10/18/1897 Extended most service around Inner Loop 04/20/1898 Changed to electric operation 11/03/05 Began Englewood Line service Inner Loop or Congress to STATE 12/10/05 Extended Englewood Line from State to WENTWORTH 01/11/06 Extended Englewood Line from Wentworth to PRINCETON 11/03/06 Extended Englewood Line from Princeton to HARVARD 12/24/06 Extended Englewood Line from Harvard to HALSTED 02/25/07 Extended Englewood Line from Halsted to RACINE 03/26/07 Began express service 05/25/07 Diverted part of each Englewood Line train via Normal Park Line to 69TH 07/13/07 Extended Englewood Line from Racine to LOOMIS 09/20/07 Began Kenwood Line service from Inner Loop to 42ND PLACE. Trackage beteen Indiana and 42nd Place owned by Chicago Junction Ry (later Chicago Rver & Indiana Ry). 04/09/08 Began Stock Yards Line service from Indiana to Stock Yards Loop. Trackage owned by Chicago Junction Ry. 11/03/13 Rerouted all service via Outer Loop, also began thru Jackson Park-Evanston Express and Englewood/Normal Park-Wilson Express all times, South Park-Wilson Local Mon-Sat. Retained Kenwood-Loop Express (Kenwood-Loop Local Sundays) 1920's Revised thru service. Discontinued South Park-Wilson Local service and Kenwood-Loop Express service, began Kenwood Local-Ravenswood Express service (Kenwood-Ravenswood Local Sundays) 1922 Cut back Jackson Park-Evanston service to Howard 02/24? Kenwood-Ravenswood Local made Kenwood Local-Ravenswood Express Sundays 02/23/31 Revised thru services. Replaced Kenwood Local-Ravenswood Express and Englewood/Normal Park-Wilson Express services with Kenwood-Wilson Local and Englewood/Normal Park-Ravenswood Express services in rush only, Kenwood-Loop Local and Englewood/Normal Park-Loop Express other times. 10/17/43 Opened State St Subway. Rerouted Jackson Park-Howard service via subway, expanded Englewood/Normal Park-Ravenswood service from rush only to all times and rerouted via subway, expanded Kenwood/Wilson service from rush only to all times, remaining routed via Loop Roster: 1-50 Jackson & Sharp 1892 (steam coach) 51-80 Gilbert 1892 (steam coach) 81-100 Jackson & Sharp 1892 (steam coach) 101-150 Gilbert 1892 (steam coach) 151-180 Jackson & Sharp 1892 (steam coach) note: 120 cars rebuilt to electric motors 1897-98 by Wells & French, 30 additional cars rebuilt 1899 by SSERy, final 30 rebuilt to electric trailers 1900 by SSERy 181-210 Jewett 1900 211-230 Jewett 1902 231-250 Jewett 1903 251-320 Jewett 1905 321-400 AC&F 1905 note all cars 1-400 to CRT same #'s 08/08/03

NORTHWESTERN ELEVATED RR CO CHICAGO RAPID TRANSIT CO (01-09-24) 05/31/00 Began Wilson Line service WILSON to OUTER LOOP 05/18/07 Began Ravenswood Line service WESTERN to OUTER LOOP 05/16/08 Began Evanston Line service CENTRAL to OUTER LOOP, using Milwaukee Road trackage north of Wilson. 11/17/08 Rerouted some weekday PM rush service into NORTH WATER TERMINAL (this station had outbound service only, trains deadheading in) 04/02/12 Extended Evanston Line from Central to LINDEN 11/03/13 Reversed direction of travel, from left-handed to right-handed. Began thru services to South Side, Evanston-Jackson Park Express and Wilson-Englewood/Normal Park Express all times, and Wilson/South Park Local Mon-Sat only. Ravenswood-Loop Express (local Sun) retained. 1920's Revised thru services. Replaced Wilson/South Park Local with Wilson/Loop Local Mon-Sat, also replaced Ravenswood/Loop Express with Ravenswood Express-Kenwood Local (Ravenswood-Kenwood Local Sun) 1921 Cut back Evanston-Jackson Park service to Howard account line elevated and expanded to four tracks Wilson to Howard, Evanston Line separated and routed to Loop, made express south of Howard. 02/24? Began Wilson-Loop Local Sun, made Ravenswood express Sundays. 03/28/25 Began Skokie service DEMPSTER to Howard, over track owned by Chicago North Shore & Milwaukee RR 1927 Began coupling rush hour Skokie trains to Evanston trains at Howard for thru service to Loop 1929 Cut back Skokie service to shuttle Dempster to Howard only 02/23/31 Revised thru services. Replaced Wilson-Englewood/Normal Park Express, Ravenswood Express/Kenwood Local, and Wilson/Loop Local services in rush with Wilson-Loop Express, Wilson-Kenwood Local, and Ravenswood-Englewood/Normal Park Express services, Ravenswood-Loop Express and Wilson-Loop Local, other times. 10/17/43 Opened State St Subway. Rerouted Howard-Jackson Park service via subway, expanded Ravenswood-Englewood/Normal Park service from rush only to all times and rerouted via subway, expanded Wilson-Kenwood service to all times, retained via Loop. Roster: 1-37 Pullman 1898 to CRT 1001-1037 38-47 AC&F 1900 to CRT 1038-1047 48-52 AC&F 1900 to CRT 1048-1052 53-59 St Louis 1901 to CRT 1053-1059 100-209 Pullman 1898 (trailer) to CRT 1100-1209 210-234 AC&F 1900 (trailer) to CRT 1210-1234 235-259 St Louis 1901 (trailer) to CRT 1235-1259 260-299 AC&F 1907 (trailer) to CRT 1260-1299 700-734 St Louis 1903 to CRT 1700-1734 735-768 Jewett 1906 to CRT 1735-1768 769-788 Pullman 1908 to CRT 1769-1788 1789-1808 converted from trailers 1280-1299 1913) 08/08/03

LAKE STREET ELEVATED RR CO CHICAGO & OAK PARK ELEVATED RY (04-22-04) CHICAGO RAPID TRANSIT CO (01-31-24) 11/06/1893 Began service CALIFORNIA to MADISON/MARKET using steam locomotives. 04/29/1894 Extended from California to LARAMIE 10/01/1894 Rerouted to STATE/LAKE, began shuttle service Madison/Market to Canal St 06/14/1896 Began electric operation 06/20/1896 Resumed steam operation account wreck involving an electric car 09/20/1896 Began permanent electric operation 11/08/1896 Extended service State/Lake to ADAMS/WABASH 10/03/1897 Rerouted around Outer Loop, service to Madison/Market reduced to rush only, with non-rush shuttle to Canal. Changed to left-hand operation east of Franklin St. 04/15/1899 Extended from Laramie to AUSTIN via ground-level trackage 05/14/1899 Extended from Austin to WISCONSIN via street railway trackage on Randolph St 05/30/1899 Rerouted some service to HARLEM RACE TRACK via Harrison St street railway trackage on racing days only. Shuttle using a streetcar operated Harrison/Cuyler to Randolph/Lombard at other times. 10/25/1899 Suspended all service west of Austin account political dispute 11/1899 Resumed service west of Austin after dispute resolved 01/25/01 Rerouted service to MARION via street-level trackage next to South Blvd, discontinued service via Randolph to Wisconsin 03/01 Resumed service Wisconsin/Randolph to Lombard/South Blvd using a shuttle car 04/01/01 Resumed thru service Loop to Randolph/Wisconsin Mon-Sat only 08/07/02 Changed to left-hand operation Austin to Franklin account congestion at Franklin 08/11/02 Began express service 1903 Discontinued Madison/Market shuttle except in AM rush, began some thru service in PM rush from Madison/Market 12/21/03 Discontinued service to Randolph/Wisconsin, extended Cuyler Shuttle car from Randolph/Lombard to Lombard/South Blvd, changed to left-hand operation Austin to Marion. 06/04 Discontinued service to Harlem Race Track account closing of track 07/03/04 Discontinued Cuyler Shuttle service 05/24/09 Discontinued Madison/Market Shuttle service in AM rush, retaining PM rush thru service 07/23/09 Resumed Cuyler Shuttle service, using a streetcar 1909 Discontinued Cuyler Shuttle service 05/14/10 Extended from Marion to FOREST PARK 01/10/11 Resumed Cuyler Shuttle service, using elevated cars 07/04/12 Discontinued Cuyler Shuttle service 11/01/13 Changed to right-hand operation, rerouted around Inner Loop Roster: 1-100 1893 Gilbert (steam trailer) 101-125 1894 Pullman (steam trailer) note: 101-125 rebuilt to electric motor 1895-96, 15 of 1-100 rebuilt to electric motor 1896, r# 109,125 (2nd), 126-138. 101,102, 119 replaced by new cars from St Louis 1905, remains of originals used to build trailers 236-238. All others to CRT 3001-3138 139-146 1901 St Louis to CRT 3139-3146 147-166 1909 Brill to CRT 3147-3166 201-215 1900 Pullman (trailer) to CRT 3201-3215 216-235 1901 St Louis (trailer) to CRT 3216-3235 236-238 1908 LSERR (trailer) to CRT 3236-3238 08/09/03

Roster - Chicago Rapid Transit Co: 1-400 (ex South Side) 1001-1808 (ex Northwestern) 1809-1815 (ex 1270-1275, motorized 1950) 2100-2927 (ex Metropolitan) 3001-3238 (ex Lake Street) 4001-4066 1914 Cincinnati (trailer) 4067-4128 1914 Cincinnati 4129-4250 1915 Cincinnati 4251-4350 1922 Cincinnati 4351-4355 1923 Cincinnati 4356-4455 1924 Cincinnati 4456 (ex 4005, motorized 1955) 08/09/03