| Board of Directors | 1923 – 1995 |
| Board of Directors | 1923 – 1994 |
| Board of Directors | 1923 – 1995 |
| Chairman | 1998 – 1990 |
| Board of Directors | 2000 – 2006 |
| Chairman | 1999 – 2006 |
| Chairman | 1999 – 1999 |
| Board of Directors | 1923 – 1989 |
| Chairman | 1923 – 1995 |
| Board of Directors | 1923 – 1989 |
| Board of Directors | 2006 – 2006 |
| Chairman | 1999 – 2003 |
| Board of Directors | 1923 – 1999 |
| Board of Directors | 1999 – 1999 |
| Board of Directors | 1923 – 1995 |
| Board of Directors | 1923 – 1993 |
| Board of Directors | 1923 – 1990 |
| Board of Directors | 1996 – 1997 |
| Board of Directors | 1923 – 1991 |
| Chairman | 1923 – 1997 |
| Board of Directors | 1923 – 1990 |
| Chairman | 1923 – 1995 |
| Board of Directors | 2003 – 2006 |