| BILLINGHAY, Adele ACTIVE | Director | 04 Jan 2022 | | England | January 1962 | Harding House Gallery, 50 Steep Hill, Lincoln, Lincs, LN2 1LT, England |
| EAGLES, Melanie Dawn ACTIVE | Director | 04 Mar 2025 | | United Kingdom | May 1970 | 7, Eastfield Lne, Welton, Lincoln, LN2 3NA, United Kingdom |
| JAMES, Glynne ACTIVE | Director | 06 Jun 2022 | | United Kingdom | December 1948 | 2, Hauser Close, Quarrington, Sleaford, Lincolnshire, NG34 8WD, United Kingdom |
| PAYNE, Allison ACTIVE | Director | 20 Feb 2017 | | England | March 1949 | 5, Willow Road, North Hykeham, Lincoln, LN6 8DS, United Kingdom |
| PITTMAN, Lois, Dr ACTIVE | Director | 20 May 2021 | | England | October 1959 | Harding House Gallery 50, Steep Hill, Lincoln, LN2 1LT, England |
| POOLE, Andrew ACTIVE | Director | 20 Feb 2017 | | England | May 1958 | Waringlea, Spilsby Road, Horncastle, LN9 6AL, United Kingdom |
| BILLINGHAY, Adele RESIGNED | Secretary | 16 Oct 2020 | 04 Jan 2022 | | | 16, Station Road, North Hykeham, Lincoln, LN6 9AQ, England |
| MCCAUGHERN, Jacqueline RESIGNED | Secretary | 21 Sep 1998 | 30 Jun 1999 | | | 30 Victoria Street, West Parade, Lincoln, Lincolnshire, LN1 1HY |
| PENDLEBURY, Christine RESIGNED | Secretary | 30 Jun 1999 | 01 May 2001 | | | Old Police House, Darlton Road, Dunham On Trent, Newark, Nottinghamshire, NG22 0UH |
| ROGERS, Rachel Frances RESIGNED | Secretary | 01 Sep 2023 | 28 Feb 2026 | | | 8, Western Crescent, Lincoln, LN6 7TD, England |
| SHARPE, David RESIGNED | Secretary | 04 Jan 2022 | 21 Aug 2023 | | | Harding House Gallery, 50 Steep Hill, Lincoln, LN2 1LT, England |
| SKANSKI SUCH, Bridget Louise RESIGNED | Secretary | 30 Sep 2001 | 31 Dec 2013 | | | 81 Village Street, Oasby, Grantham, Lincolnshire, NG32 3NB |
| WARREN, Paulette Erica RESIGNED | Secretary | 11 Apr 1994 | 21 Sep 1998 | | | Eastcroft House Eastcroft Lane, Askham, Newark, Nottinghamshire, NG22 0RL |
| WRIGHT, Jane Elizabeth RESIGNED | Secretary | 19 Sep 2013 | 14 Oct 2020 | | | Harding House Gallery, 50 Steep Hill, Lincoln, Lincolnshire, LN2 1LU, United Kingdom |
| BAXTER, Rosi Ann RESIGNED | Director | 20 Feb 2017 | 30 Sep 2021 | England | March 1956 | 50, Steep Hill, Lincoln, Lincolnshire, LN1 1LT |
| BAXTER, Rosi Ann RESIGNED | Director | 22 Oct 2015 | 16 Oct 2016 | England | March 1956 | Harding House Gallery, 50 Steep Hill, Lincoln, LN2 1LU, England |
| BAXTER, Rosi Ann RESIGNED | Director | 04 Aug 1994 | 18 Mar 1996 | England | March 1956 | 9 Fulmar Road, Lincoln, Lincolnshire, LN6 0LA |
| BILLINGHAY, Adele RESIGNED | Director | 11 Apr 2018 | 16 Oct 2020 | England | January 1962 | 16, Station Road, North Hykeham, Lincoln, LN6 9AQ, England |
| BROWN, Elizabeth RESIGNED | Director | 20 Feb 2017 | 31 Mar 2024 | England | May 1960 | 6, Hainton Road, Lincoln, LN6 7PR, United Kingdom |
| HOYER, Dawn RESIGNED | Director | 01 Sep 2001 | 11 Nov 2002 | | February 1965 | 2 Bedford Street, Lincoln, Lincolnshire, LN1 1NA |
| LANCASTER, Susan RESIGNED | Director | 08 Apr 2004 | 31 Mar 2007 | England | January 1953 | 54 Brooklands Avenue, Sheffield, South Yorkshire, S10 4GD |
| LEE, Gail Belinda RESIGNED | Director | 20 Jul 2001 | 31 Mar 2008 | | February 1966 | 46 Washington Drive, Newtoft, Market Rasen, Lincolnshire, LN8 3NW |
| LEEKE, Deborah RESIGNED | Director | 21 Sep 1998 | 30 Jun 2000 | | March 1957 | Gander Hill Cottage Bathley Lane, Norwell, Newark, Nottinghamshire, NG23 6JU |
| LEEKE, Deborah RESIGNED | Director | 03 Jun 1996 | 31 May 1997 | | March 1957 | Gander Hill Cottage Bathley Lane, Norwell, Newark, Nottinghamshire, NG23 6JU |
| MATTHAEI-LITTLER, Caroline Christine RESIGNED | Director | 11 Apr 1994 | 31 Dec 1998 | | December 1953 | Ivy Cottage 11 Chapel Lane, Lincoln, Lincolnshire, LN1 3BA |
| MCCAUGHERN, Jacqueline RESIGNED | Director | 13 Jan 1998 | 11 Feb 2001 | | April 1948 | 30 Victoria Street, West Parade, Lincoln, Lincolnshire, LN1 1HY |
| NEALE, Helen Mary RESIGNED | Director | 01 Jul 1995 | 30 Sep 2012 | England | April 1935 | 2 Yeomans Road, Sheffield, South Yorkshire, S6 3JD |
| PAYNE, Allison RESIGNED | Director | 11 Nov 2002 | 30 Sep 2006 | England | March 1949 | 5 Willow Road, North Hykeham, Lincoln, Lincolnshire, LN6 8DS |
| PENDLEBURY, Christine RESIGNED | Director | 30 Jun 1999 | 31 Mar 2002 | | September 1947 | Old Police House, Darlton Road, Dunham On Trent, Newark, Nottinghamshire, NG22 0UH |
| POVEY, Ann RESIGNED | Director | 21 Sep 1998 | 31 Mar 2002 | | February 1953 | 43 Hartsholme Drive, Lincoln, Lincolnshire, LN6 0HF |
| ROGERS, Rachel Frances RESIGNED | Director | 01 Apr 2022 | 28 Feb 2026 | England | October 1971 | Harding House Gallery, Steep Hill, Lincoln, LN2 1LT, England |
| ROOKE, Peter RESIGNED | Director | 13 Jan 2005 | 01 Apr 2021 | England | March 1944 | 19 Midholm, Cherry Willingham, Lincoln, Lincolnshire, LN3 4DA |
| RYLATT, Ian Paul RESIGNED | Director | 11 Apr 1994 | 08 Apr 2004 | | December 1963 | 61a Church Street, Long Bennington, Newark, Nottinghamshire, NG23 5ES |
| SHARLAND, Vivien Ruth RESIGNED | Director | 11 Nov 2002 | 08 Apr 2004 | | June 1960 | Corner Cottage, Cadney Road, Howsham, Market Rasen, Lincolnshire, LN7 6LA |
| SHARPE, David RESIGNED | Director | 20 Feb 2017 | 01 Sep 2023 | England | February 1972 | Highfield Farm, West Willoughby, Grantham, NG32 3SJ, United Kingdom |
| SMITH, Penelope Evelyn RESIGNED | Director | 01 Jun 1997 | 21 Sep 1998 | | January 1946 | 48 Lime Tree Avenue, Retford, Nottinghamshire, DN22 7BA |
| VAN REIGERSBERG-VERSLUYS, Pauline Anne RESIGNED | Director | 11 Apr 1994 | 31 Mar 1997 | | April 1957 | Vine Farm Barnack Road, Bainton, Stamford, Lincolnshire, PE9 3AE |
| VINES, Gill RESIGNED | Director | 20 Feb 2017 | 31 Mar 2024 | England | May 1969 | 95, Mill Road, Lincoln, LN1 3JQ, United Kingdom |
| WALLHEAD, Kevin RESIGNED | Director | 29 Aug 2013 | 31 Jan 2024 | United Kingdom | January 1958 | Harding House, Gallery, Steep Hill, Lincoln, LN2 1LT, England |
| WARREN, Paulette Erica RESIGNED | Director | 10 Mar 1998 | 21 Sep 1998 | | March 1945 | Eastcroft House Eastcroft Lane, Askham, Newark, Nottinghamshire, NG22 0RL |