| Current (6) |
| Board of Directors | 2018 |
| Chairman | 2020 |
| Board of Directors | 2023 |
| Board of Directors | 2010 |
| Board of Directors | 2016 |
| Board of Directors | 2015 |
| Former (22) |
| Board of Directors | 1889 – 1999 |
| Board of Directors | 1889 – 1996 |
| Board of Directors | 2003 – 2015 |
| Board of Directors | 1889 – 2000 |
| Board of Directors | 1998 – 2002 |
| Chairman | 1889 – 2006 |
| Board of Directors | 2002 – 2009 |
| Board of Directors | 1889 – 1999 |
| Board of Directors | 2004 – 2011 |
| Board of Directors | 1889 – 1996 |
| Board of Directors | 2006 – 2018 |
| Board of Directors | 2015 – 2018 |
| Deputy Chairman | 1889 – 1997 |
| Board of Directors | 2015 – 2017 |
| Board of Directors | 2011 – 2015 |
| Board of Directors | 1889 – 2010 |
| Board of Directors | 2000 – 2011 |
| Board of Directors | 1889 – 2004 |
| Board of Directors | 2011 – 2015 |
| Board of Directors | 1889 – 1998 |
| Chairman | 2006 – 2020 |
| Board of Directors | 1999 – 2004 |
