In July 1782, he replaced Delancey and after the war he worked for Sir Guy Carleton in Canada. His efforts were aimed at stirring up trouble in Vermont, Florida, Kentucky and Tennessee. At the time Britain thought the weak American government might ask for British help.[1]
He was then appointed Governor and Commander-in-Chief of Bermuda in 1797, when a colonel. His baggage and furniture left England on 23 September 1797, aboard the Caledonia, travelling in a convoy bound for Halifax, Nova Scotia, but was lost when the Caledonia was captured by the French. Beckwith was to follow aboard a Royal Navy frigate and so escaped the fate of his baggage. He arrived in Bermuda in February 1798. Beckwith was later appointed Governor of Saint Vincent in 1806 and Governor of Barbados in 1810.[2]
On 1 May 1809, he was made a Knight of the Order of the Bath (later apparently elevated to Knight Grand Cross of the Order of the Bath) for his Capture of Martinique in 1809 and also led a successful expedition against Guadeloupe, the last French possession in the area, in 1810. He attained the full rank of general in 1814. Sir George Beckwith was Commander-in-Chief, Ireland from 1816 to 1820. He died in London on 20 March 1823.[2]