| Board of Directors | 1948 – 1993 |
| Board of Directors | 1998 – 1998 |
| Chairman | 1948 – 2002 |
| Board of Directors | 1948 – 1998 |
| Board of Directors | 1948 – 1989 |
| Board of Directors | 2002 – 2003 |
| Board of Directors | 1948 – 1991 |
| Chairman | 2002 – 2003 |
| Board of Directors | 1948 – 1998 |
| Board of Directors | 1948 – 1988 |
| Board of Directors | 1948 – 1991 |
| Board of Directors | 1948 – 1994 |
| Board of Directors | 2002 – 2003 |
| Board of Directors | 1948 – 2002 |
| Board of Directors | 1948 – 1990 |
| Board of Directors | 1948 – 1991 |
| Board of Directors | 1948 – 1995 |
| Board of Directors | 1948 – 1988 |
| Board of Directors | 1995 – 2002 |
| Board of Directors | 1948 – 1989 |