 As a Peelite, one of the supporters of Prime Minister Robert Peel, Barkly found himself adrift with few political prospects when Peel was overthrown, and he gratefully accepted the governorship of British Guiana when the post was offered by his Liberal opponents in 1848.Barkly was sworn in as Governor and Commander-in-Chief of British Guiana on 12 February 1849.His family connections with British Guiana and the West Indies in general served him well as governor of the colony, and prompted Lord Grey, the Secretary of State for War and the Colonies, to refer to his "remarkable skill and ability" in addressing the colony's economic issues by widening the franchise of the College of Kiezers and introducing indentured servants from Asia.