| Former (18) |
| Board of Directors | 1947 – 1998 |
| Board of Directors | 1947 – 1997 |
| Chairman | 1947 – 2004 |
| Board of Directors | 1947 – 1998 |
| Board of Directors | 1998 – 2002 |
| Board of Directors | 1998 – 2004 |
| Board of Directors | 1947 – 1988 |
| Board of Directors | 2002 – 2004 |
| Board of Directors | 2002 – 2004 |
| Board of Directors | 1947 – 1992 |
| Chairman | 1947 – 1995 |
| Board of Directors | 1947 – 1990 |
| Board of Directors | 1947 – 1994 |
| Board of Directors | 1995 – 2004 |
| Deputy Chairman | 1995 – 2004 |
| Board of Directors | 1947 – 1994 |
| Board of Directors | 2002 – 2004 |
| Board of Directors | 1947 – 2004 |