William Desborough Cooley

William Desborough Cooley (1795?–1883) was an Irish geographer. Discoveries by European explorers gradually showed that a number of his theories about Central Africa, though strongly held, were incorrect. In other controversies his position is now considered to have had some justification. His major contributions are now seen as relating to source criticism of historical records, the understanding of West Africa, and as a perceptive historian of globalisation.

Cooley was born in Dublin, the son of William Cooley, a barrister, and grandson of Thomas Cooley the architect. He studied at Trinity College, Dublin from 1811 to 1816. He was elected a fellow of the Royal Geographical Society (RGS) of London in 1830, being made an honorary free member in 1864. On the publication of Jean Baptiste Douville's Voyage au Congo in 1832, Cooley wrote an article in the Foreign Quarterly Review, which was instrumental in exposing the fraud practised by Douville.

After the Douville incident, Cooley became an influential figure for a time in the RGS. He proposed, working with William Fitzwilliam Owen, a naval expedition to East Africa. One set off under Captain James Alexander, but on calling at the Cape of Good Hope became involved in the Sixth Xhosa War, was diverted to South-west Africa, and proved financially burdensome for the RGS. Cooley's concrete plans for exploration never came to fruition. He also quarrelled with Alexander Maconochie, secretary of the RGS, and undermined his position there. His main achievement in the learned world was the foundation in 1846 of the Hakluyt Society.

Cooley held and defended strong views on the geography of Central Africa. He rejected the existence of snow-covered mountains there, even after Karl Klaus von der Decken and Richard Thornton's return from Mount Kilimanjaro in 1863. In 1864 he was still insisting that Lake Nyassa and Lake Tanganyika formed a single body of water.

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