| Former (15) |
| Deputy Chairman | 1997 – 2001 |
| Board of Directors | 2003 – 2007 |
| Board of Directors | 2004 – 2007 |
| Chairman | 1919 – 1997 |
| Board of Directors | 2001 – 2004 |
| Board of Directors | 2000 – 2007 |
| Chairman | 1919 – 2007 |
| Board of Directors | 1919 – 2000 |
| Board of Directors | 1919 – 1997 |
| Board of Directors | 1997 – 2003 |
| Board of Directors | 1919 – 2000 |
| Board of Directors | 1919 – 1996 |
| Deputy Chairman | 1919 – 1996 |
| Board of Directors | 2004 – 2007 |
| Board of Directors | 2000 – 2004 |