| Current (6) |
| Chairman | 2020 |
| Board of Directors | 2024 |
| Board of Directors | 2025 |
| Board of Directors | 2024 |
| Deputy Chairman | 2024 |
| Board of Directors | 2022 |
| Former (19) |
| Board of Directors | 1999 – 2002 |
| Board of Directors | 1871 – 1998 |
| Board of Directors | 1871 – 1993 |
| Board of Directors | 1871 – 2006 |
| Board of Directors | 2004 – 2010 |
| Board of Directors | 2012 – 2024 |
| Deputy Chairman | 1871 – 2004 |
| Chairman | 1871 – 1991 |
| Board of Directors | 1871 – 1991 |
| Board of Directors | 2016 – 2025 |
| Board of Directors | 2013 – 2014 |
| Board of Directors | 1871 – 1990 |
| Board of Directors | 1871 – 1998 |
| Board of Directors | 2002 – 2008 |
| Board of Directors | 2013 – 2022 |
| Deputy Chairman | 2004 – 2011 |
| Board of Directors | 2010 – 2016 |
| Board of Directors | 1871 – 2003 |
| Board of Directors | 2003 – 2012 |