| Former (33) |
| Board of Directors | 1942 – 1995 |
| Board of Directors | 2000 – 2001 |
| Board of Directors | 1999 – 2007 |
| Board of Directors | 2001 – 2003 |
| Board of Directors | 1993 – 1999 |
| Chairman | 1942 – 1998 |
| Board of Directors | 2007 – 2011 |
| Board of Directors | 1942 – 1991 |
| Board of Directors | 1999 – 1999 |
| Board of Directors | 1942 – 1993 |
| Board of Directors | 1942 – 1997 |
| Chairman | 2004 – 2009 |
| Chairman | 1999 – 1999 |
| Board of Directors | 2004 – 2008 |
| Board of Directors | 2011 – 2013 |
| Board of Directors | 2010 – 2013 |
| Board of Directors | 1995 – 1999 |
| Chairman | 1942 – 1991 |
| Board of Directors | 2000 – 2013 |
| Board of Directors | 2011 – 2013 |
| Board of Directors | 1942 – 1990 |
| Chairman | 2000 – 2001 |
| Chairman | 2001 – 2004 |
| Board of Directors | 1942 – 1988 |
| Board of Directors | 1942 – 1991 |
| Board of Directors | 1942 – 1989 |
| Board of Directors | 2004 – 2010 |
| Board of Directors | 1999 – 2000 |
| Chairman | 2009 – 2013 |
| Board of Directors | 2004 – 2004 |
| Board of Directors | 2008 – 2010 |
| Board of Directors | 1942 – 1990 |
| Board of Directors | 2000 – 2001 |