John Denby Sheldon OBE is a British trade unionist and former General Secretary of the Public and Commercial Services Union, and its predecessors; NUCPS, PTC and the CSU.
[2] During this time Sheldon and the CSU were amongst those active in opposing the Thatcher Government ban on trade union membership at GCHQ and the subsequent legal challenge in 1984.
Sheldon's right to continue to hold the position of General Secretary without election for more than five years was challenged under section 55 of the Trade Union and Labour Relations (Consolidation) Act 1992 but the complaint was dismissed.
[7] Following retirement, Sheldon remained active in trade union affairs, and chaired the Civil Service Appeals Panel.
[8] In 2005, Sheldon was invited to lead several independent internal trade unions investigations on behalf of PCS, the FBU and ASLEF.