| Former (18) |
| Board of Directors | 2010 – 2011 |
| Chairman | 2004 – 2008 |
| Chairman | 1939 – 1994 |
| Chairman | 1939 – 2001 |
| Deputy Chairman | 1939 – 1991 |
| Board of Directors | 1939 – 2001 |
| Board of Directors | 2001 – 2002 |
| Deputy Chairman | 1939 – 1994 |
| Chairman | 2001 – 2004 |
| Board of Directors | 2001 – 2002 |
| Board of Directors | 2001 – 2005 |
| Board of Directors | 2004 – 2011 |
| Board of Directors | 1939 – 2001 |
| Board of Directors | 1995 – 2002 |
| Chairman | 2008 – 2011 |
| Chairman | 1939 – 1991 |
| Board of Directors | 1995 – 2002 |
| Board of Directors | 2002 – 2004 |