This article seeks to re-balance the canon of anti-corn law leadership by examining the ideas and activities of Thomas Perronet Thompson. A relatively neglected figure in modern accounts of the Anti-Corn Law League and repeal in 1846, Thompson was acknowledged in his own lifetime as an outstanding campaigner whose role in the work of the League and in the mobilization of opinion was exceptional. This article investigates Thompson's free trade principles, and uses his pamphlets, articles, correspondence, speeches, and organizational efforts to create a vivid impression of repeal agitation in the 1830s and 1840s. Personal relationships between anti-corn law leaders are examined, as are the links between their movement and such other phenomena as Chartism and the campaign for factory reform. The article stresses the central importance of Thompson in the achievement of repeal and, by using his contribution as a point of entry, seeks to promote a deeper understanding of the anti-corn law creed and its modes of organization, campaigning, publicity, and propaganda.