| Former (27) |
| Board of Directors | 2007 – 2007 |
| Board of Directors | 2002 – 2005 |
| Board of Directors | 1977 – 1991 |
| Board of Directors | 2006 – 2007 |
| Board of Directors | 1998 – 2002 |
| Board of Directors | 1855 – 2000 |
| Chairman | 1987 – 2007 |
| Board of Directors | 1986 – 1998 |
| Board of Directors | 2005 – 2007 |
| Board of Directors | 1986 – 1990 |
| Board of Directors | 1855 – 2006 |
| Deputy Chairman | 2000 – 2001 |
| Deputy Chairman | 2000 – 2007 |
| Board of Directors | 1999 – 2002 |
| Board of Directors | 1855 – 1998 |
| Board of Directors | 2002 – 2007 |
| Board of Directors | 1855 – 2005 |
| Board of Directors | 1986 – 1994 |
| Board of Directors | 1980 – 1993 |
| Board of Directors | 2006 – 2007 |
| Board of Directors | 1988 – 1992 |
| Board of Directors | 1999 – 2007 |
| Board of Directors | 1855 – 2006 |
| Board of Directors | 1988 – 2007 |
| Board of Directors | 2005 – 2007 |
| Board of Directors | 1855 – 1999 |
| Board of Directors | 1984 – 1990 |