Josias Du Pré Porcher was an English politician. After following his uncle into the service of the British East India Company, he became wealthy and returned to England, although he was frustrated in an attempt to obtain a directorship of the company. His wealth and his friendship with Lord Caledon enabled him to sit in Parliament for various boroughs until 1818, although he was not a particularly conspicuous member. He died at his country home in Devonshire in 1820.

Du Pré Alexander, 2nd Earl of Caledon KP, styled The Honourable Du Pré Alexander from 1790 to 1800 and Viscount Alexander from 1800 to 1802, was an Irish peer, landlord and colonial administrator, and was the second child and only son of James Alexander, 1st Earl of Caledon.