Leonard Horner (1785–1864) by unknown artist Heriot-Watt University Archive
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Horner, Leonard (1785–1864), factory inspector, geologist, and educationist, was born on 17 January 1785 at St George's Square, Edinburgh, the third and youngest son of John Horner (d. 1829), a wealthy whig linen merchant, and his wife, Joanna, née Baillie. In his youth his circle of acquaintances included ...