| Terrence M. O'Brien | $3,000 | Feb 1, 2016 | The Alliance of Illinois Taxpayers NFP | President |
| Terrence M. O'Brien | $3,000 | Feb 1, 2016 | The Alliance of Illinois Taxpayers NFP | President |
| Terrence O'Brien | $1,500 | Jan 28, 2016 | Friends of Juliana Stratton | President |
| Terrence O'Brien | $1,500 | Jan 28, 2016 | Friends of Juliana Stratton | President |
| Terrence O'Brien | $1,500 | Jan 28, 2016 | Friends of Juliana Stratton | President |
| Terrence M O'Brien | $1,000 | Sep 16, 2015 | Citizens for Lisa Madigan | President |
| Terrence M O'Brien | $1,000 | Sep 16, 2015 | Citizens for Lisa Madigan | President |
| Terrence O'Brien | $1,500 | Oct 17, 2014 | Friends of Tabares | Executive |
| Terrence M. O'Brien | $1,500 | Oct 1, 2014 | The Alliance of Illinois Taxpayers NFP | President |
| Terrence M. O'Brien | $1,000 | Jul 28, 2014 | Citizens for Lisa Madigan | President |
| Terrence M. O'Brien | $1,000 | Jul 28, 2014 | Citizens for Lisa Madigan | President |
| Terrence O'Brien | $3,000 | Apr 11, 2013 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,000 | Apr 11, 2013 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,000 | Apr 11, 2013 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,000 | Apr 11, 2013 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,000 | Apr 11, 2013 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,750 | May 4, 2012 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,750 | May 4, 2012 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,750 | May 4, 2012 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,750 | May 4, 2012 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,750 | May 4, 2012 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence O'Brien | $3,750 | May 4, 2012 | Committee to Reelect Larry R Rogers Jr | President |
| Terrence M. O'Brien | $2,500 | Mar 30, 2012 | Citizens for Lisa Madigan | President |
| Terrence M. O'Brien | $2,500 | Mar 30, 2012 | Citizens for Lisa Madigan | President |
| Terrence M. O'Brien | $2,500 | Jun 20, 2011 | Citizens for Lisa Madigan | President |
| Terrence M. O'Brien | $2,500 | Jun 20, 2011 | Citizens for Lisa Madigan | President |
| Terrence M O'Brien, | $5,000 | Jun 7, 2010 | Citizens for Lisa Madigan | President |
| Terrence M O'Brien, | $1,000 | Oct 1, 2009 | Citizens for Lisa Madigan | President |
| Terrence M O'Brien, | $2,500 | Aug 11, 2008 | Citizens for Lisa Madigan | President |
| Terrence O'Brien | $1,000 | Nov 2, 2007 | Citizens for Lisa Madigan | President |
| Terrence O'Brien | $5,000 | Feb 28, 2006 | Citizens for Lisa Madigan | President |
| Terrence O'Brien | $5,000 | Feb 28, 2006 | Citizens for Lisa Madigan | President |
| Terrence O'Brien | $1,000 | Apr 15, 2001 | Friends of Dan Hynes | Executive |
| Terrence O'Brien | $1,000 | Apr 15, 2001 | Friends of Dan Hynes | Executive |
| Terrence O'Brien | $1,000 | May 25, 2000 | Friends of Dan Hynes | Executive |
| Terrence M. O'Brien | $1,500 | Nov 1, 1999 | Citizens for James M Houlihan | Appraiser |
“the ward with no alderman”