Sadie was a member of Castlereagh Arts Committee from which she resigned when she ceased to live in Castlereagh Council area.
She was founder member of Castlereagh Standing Conference and in time became Chairman. As such she represented Castlereagh Standing Conference on Women’s Forum Northern Ireland.
As Chairman of Women’s Forum Northern Ireland she was their representative on the Women’s National Commission in London. She represented Women’s Forum NI at The Fourth World Conference on Women in Beijing 1995. Sadie was a member of the Women’s National Commission for six years. For her work on their behalf in Northern Ireland she was honoured with a M.B.E. in New Year's Honours in 2000.
For health reasons she gave up membership of several organisations but still continued membership of Business and Professional Women (UK) Ltd., UNIFEM(UK) N. Ireland Branch, church and local organisations in Bangor, including Probus and Luncheon Club.
She was also involved in fund raising for Ulster Cancer Foundation, Newtownbreda Support Group as well as fund-raising for MacMillan Cancer Care.