| Current (2) |
| Chairman | 2025 |
| Board of Directors | 2025 |
| Former (32) |
| Board of Directors | 1919 – 1999 |
| Board of Directors | 2024 – 2025 |
| Chairman | 2021 – 2023 |
| Board of Directors | 1999 – 2001 |
| Board of Directors | 1995 – 2002 |
| Board of Directors | 1919 – 1991 |
| Chairman | 1919 – 1991 |
| Chairman | 2004 – 2006 |
| Board of Directors | 2002 – 2004 |
| Board of Directors | 2015 – 2018 |
| Board of Directors | 2004 – 2006 |
| Board of Directors | 2008 – 2012 |
| Board of Directors | 1919 – 1995 |
| Board of Directors | 2018 – 2019 |
| Board of Directors | 2025 – 2025 |
| Board of Directors | 2002 – 2004 |
| Chairman | 2024 – 2025 |
| Chairman | 1919 – 1993 |
| Chairman | 2006 – 2010 |
| Board of Directors | 1999 – 2002 |
| Board of Directors | 1919 – 1999 |
| Chairman | 2017 – 2021 |
| Chairman | 1919 – 1988 |
| Board of Directors | 2004 – 2008 |
| Chairman | 2002 – 2004 |
| Board of Directors | 2012 – 2014 |
| Board of Directors | 2019 – 2024 |
| Chairman | 2010 – 2017 |
| Board of Directors | 2009 – 2016 |
| Board of Directors | 1999 – 2001 |
| Board of Directors | 2004 – 2007 |
| Board of Directors | 2001 – 2002 |