| Former (19) |
| Chairman | 2015 – 2023 |
| Board of Directors | 1996 – 1998 |
| Board of Directors | 1996 – 1998 |
| Board of Directors | 1935 – 1996 |
| Board of Directors | 1998 – 2003 |
| Chairman | 2014 – 2015 |
| Chairman | 2009 – 2011 |
| Chairman | 1996 – 1996 |
| Board of Directors | 1935 – 1993 |
| Chairman | 2011 – 2013 |
| Board of Directors | 1935 – 1990 |
| Board of Directors | 2003 – 2008 |
| Board of Directors | 1935 – 1993 |
| Board of Directors | 2011 – 2012 |
| Board of Directors | 2012 – 2013 |
| Board of Directors | 1996 – 1998 |
| Board of Directors | 2014 – 2015 |
| Chairman | 2003 – 2009 |
| Board of Directors | 2014 – 2023 |