| 2026-03-18 | Org. that offers one "L" of a ride? |
| 2026-02-26 | Org. that runs the "L" |
| 2025-07-13 | Windy City commuting org. |
| 2023-12-01 | Windy City commuters' inits. |
| 2023-07-02 | Overseer of Windy City buses and trains, in brief |
| 2022-05-11 | Windy City rail system, in brief |
| 2021-01-18 | Org. that runs Windy City trains |
| 2019-02-28 | 'L' train overseer, for short |
| 2018-07-19 | Windy City rail org. |
| 2018-04-03 | Windy City rail inits. |
| 2018-01-05 | 'L' overseer |
| 2017-12-17 | Inits. for getting around the Loop |
| 2017-12-14 | Second City train inits. |
| 2017-10-26 | Windy City rail inits. |
| 2017-05-10 | 'L' train overseer |
| 2017-02-28 | Windy City 'L' overseer |
| 2017-01-08 | El operator in the Windy City, briefly |
| 2016-11-10 | Windy City transportation inits. |
| 2016-08-05 | Second City subway org. |
| 2016-05-10 | El-overseeing org. |
| 2015-12-25 | Midwest transportation inits. |
| 2015-08-18 | Inits. for Windy City commuters |
| 2013-10-22 | It runs the 'L' |
| 2012-10-14 | Windy City commuters' inits. |
| 2011-11-27 | Windy City rail inits. |
| 2011-03-08 | El-overseeing org. |
| 2010-10-24 | L overseer |
| 2010-05-02 | Windy City transportation inits. |
| 2009-10-28 | Windy City transportation org. |
| 2007-01-05 | Windy City rail inits. |
| 2006-02-03 | Windy City rail inits. |
| 2005-07-21 | Windy City transportation org. |
| 2004-08-12 | Loop group: Abbr. |
| 2000-07-15 | Windy City transportation inits. |
| 1999-06-06 | Windy City rail system, briefly |