| Current (2) |
| Board of Directors | 2024 |
| Chairman | 2019 |
| Former (25) |
| Board of Directors | 1932 – 1998 |
| Deputy Chairman | 2021 – 2024 |
| Deputy Chairman | 1932 – 1995 |
| Board of Directors | 1932 – 1997 |
| Chairman | 2000 – 2015 |
| Board of Directors | 1932 – 1995 |
| Chairman | 1932 – 1995 |
| Board of Directors | 1932 – 1994 |
| Board of Directors | 1932 – 1995 |
| Deputy Chairman | 1932 – 1990 |
| Board of Directors | 1998 – 2010 |
| Board of Directors | 1999 – 2001 |
| Board of Directors | 1932 – 1988 |
| Board of Directors | 1932 – 1995 |
| Board of Directors | 1932 – 1996 |
| Deputy Chairman | 2010 – 2018 |
| Board of Directors | 1932 – 2020 |
| Deputy Chairman | 2018 – 2021 |
| Board of Directors | 1932 – 2002 |
| Board of Directors | 1932 – 1999 |
| Chairman | 1932 – 2000 |
| Board of Directors | 1932 – 1995 |
| Board of Directors | 2002 – 2010 |
| Chairman | 1932 – 1990 |
| Chairman | 2015 – 2018 |