| BRANDER, David ACTIVE | Secretary | 06 May 2026 | | | | Museum Wing 2-5, Callaly Castle, Callaly, Alnwick, Northumberland, NE66 4TA |
| HENFREY, Anthony William, Dr ACTIVE | Director | 10 Oct 2022 | | England | December 1944 | Museum Wing 2-5, Callaly Castle, Callaly, Alnwick, Northumberland, NE66 4TA |
| VERNON, Mark William ACTIVE | Director | 08 Jun 2026 | | United Kingdom | September 1969 | Museum Wing 2-5, Callaly Castle, Callaly, Alnwick, Northumberland, NE66 4TA |
| ARNOTT, Brenda Eileen RESIGNED | Secretary | 27 Jul 1997 | 17 Feb 2002 | | | 5 Museum Wing Callaly Castle, Callaly, Alnwick, Northumberland, NE66 4TA |
| EMERY, John Victor RESIGNED | Secretary | 04 Jun 1995 | 27 Jul 1997 | | | Flat 2 Callaly Castle, Whittingham, Northumberland, NE66 4TA |
| HENFREY, Mary Jean RESIGNED | Secretary | | 23 May 1995 | | | Flat 3 Museum Wing, Callaly Castle, Alnwick, Northumberland, NE66 4TA |
| RAE, John Wynne RESIGNED | Secretary | 17 Feb 2002 | 26 Mar 2009 | | | 4 Museum Wing, Callaly Castle, Whittingham, Northumberland, NE66 4TA |
| SIMMONDS, David RESIGNED | Secretary | 26 Mar 2009 | 06 May 2026 | | | Museum Wing 2-5, Museum Wing 2-5, Callaly Castle, Alnwick, United Kingdom |
| ARNOTT, Brenda Eileen RESIGNED | Director | 21 Mar 2008 | 30 Mar 2010 | England | November 1946 | 5 Museum Wing Callaly Castle, Callaly, Alnwick, Northumberland, NE66 4TA |
| EMERY, John Victor RESIGNED | Director | 26 Mar 2009 | 27 Sep 2022 | England | December 1939 | Flat 2, Museum Wing, Callaly Castle, Whittingham, Alnwick, Northumberland, NE66 4TA |
| EMERY, John Victor RESIGNED | Director | | 24 Oct 1998 | England | December 1939 | Flat 2 Callaly Castle, Whittingham, Northumberland, NE66 4TA |
| HENFREY, Mary Jean RESIGNED | Director | 15 Jul 1997 | 17 Mar 2008 | | May 1943 | Flat 3 Museum Wing, Callaly Castle, Alnwick, Northumberland, NE66 4TA |
| MANSON, Anne Daphne Patricia RESIGNED | Director | 16 Jul 1995 | 15 Jul 1997 | | January 1936 | 1 Museum Wing, Callaly Castle, Alnwick, Northumberland, NE66 4TA |
| METAXA, Gerda RESIGNED | Director | 27 Oct 1993 | 16 Jul 1995 | | November 1937 | Bell Flat Museum Wing, Callaly Castle, Whittingham, Northumberland, NE66 4TA |
| RADGICK, Jonathan Philip RESIGNED | Director | 24 Oct 1998 | 14 Mar 2006 | | March 1957 | 1 Museum Wing, Callaly Castle, Northumberland, NE66 4TA |
| RAE, John Wynne RESIGNED | Director | 14 Mar 2006 | 26 Mar 2009 | | July 1951 | 4 Museum Wing, Callaly Castle, Whittingham, Northumberland, NE66 4TA |
| SIMMONDS, David RESIGNED | Director | 30 Mar 2010 | 11 Apr 2026 | United Kingdom | June 1948 | Museum Wing 2-5, Callaly Castle, Callaly, Alnwick, Northumberland, NE66 4TA |
| WINSKELL, Michael Ian RESIGNED | Director | | 22 Oct 1993 | | December 1957 | Flat 1 Callaly Castle, Whittingham, Northumberland, NE66 4TA |