| Board of Directors | 2004 – 2006 |
| Board of Directors | 1997 – 1998 |
| Chairman | 2011 – 2012 |
| Board of Directors | 1942 – 1996 |
| Board of Directors | 1998 – 2003 |
| Board of Directors | 1942 – 1996 |
| Chairman | 1997 – 1998 |
| Board of Directors | 1996 – 1996 |
| Board of Directors | 1997 – 2004 |
| Board of Directors | 2006 – 2010 |
| Board of Directors | 2010 – 2012 |
| Board of Directors | 2000 – 2004 |
| Board of Directors | 1998 – 2001 |
| Chairman | 2000 – 2004 |
| Board of Directors | 2003 – 2004 |
| Board of Directors | 2012 – 2014 |
| Board of Directors | 1996 – 1997 |
| Board of Directors | 1942 – 1996 |
| Chairman | 2004 – 2006 |
| Board of Directors | 1997 – 2004 |
| Chairman | 1996 – 1997 |
| Board of Directors | 2004 – 2010 |
| Board of Directors | 1942 – 1992 |
| Board of Directors | 1942 – 1992 |
| Chairman | 2006 – 2011 |
| Chairman | 1942 – 1992 |
| Chairman | 1942 – 1996 |
| Chairman | 1942 – 1992 |
| Board of Directors | 1942 – 1992 |
| Board of Directors | 1996 – 1997 |
| Board of Directors | 1997 – 1998 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 1942 – 1992 |
| Board of Directors | 2010 – 2014 |
| Board of Directors | 1998 – 2000 |
| Board of Directors | 1942 – 1989 |