| Board of Directors | 2008 – 2010 |
| Board of Directors | 1962 – 2005 |
| Board of Directors | 2007 – 2010 |
| Board of Directors | 1962 – 1995 |
| Chairman | 2002 – 2007 |
| Board of Directors | 1962 – 1998 |
| Board of Directors | 1962 – 1999 |
| Chairman | 2007 – 2010 |
| Board of Directors | 2002 – 2003 |
| Board of Directors | 2003 – 2007 |
| Chairman | 1962 – 2002 |
| Board of Directors | 1962 – 1992 |
| Board of Directors | 1962 – 1989 |
| Board of Directors | 2007 – 2008 |