A distinguished judge whose Unitarian schooling gave him ‘an inveterate repugnance to the subscription to all dogmatic articles of religion’,
Mellor’s first two forays into parliamentary politics were unsuccessful, finishing bottom of the poll as the sole Liberal candidate at Warwick in 1852, and losing to two official Liberal candidates, Edward Ellice and Sir Joseph Paxton in 1857 at Coventry, where he had come forward at the behest of a group of local working men frustrated at Paxton’s perceived repeated absences from the Commons.
It has been suggested that Mellor ‘tended to speak little in parliament’,
Making a number of candid speeches on corrupt practices at elections, Mellor made his most significant contributions during Palmerston’s second administration. Having chaired a select committee on the Clare election petition,
Mellor’s Unitarian beliefs continued to shape his parliamentary contributions in this period as he introduced the trustees of charities bill, arguing that no man should be ineligible for any trusteeship on account of his religious denomination,
Appointed a judge in the queen’s bench, Mellor retired from parliament in December 1861, receiving his knighthood six months later. A member of the special commission which tried Fenian prisoners at Manchester in 1867 and of the court in the notorious Tichborne case of 1873, Mellor enjoyed an eminent legal career until deafness forced him to retire in 1879.
