The James baronetcy, of Langley Hall, in the County of Berkshire, was created in the Baronetage of Great Britain in 1791[6] for the first Baron's grandfather Sir Walter James, the last Warden of the Mint. Born Walter James Head, he assumed by Act of Parliament the surname of James only in 1778, on inheriting the estates of his brother William (himself having inherited the estates of their uncle-in-law, John James of Denford Court). His son and heir John James notably served as Minister Plenipotentiary to the Netherlands. The latter was the father of the second Baronet, who was raised to the peerage in 1884.
The Hon. Cuthbert James, second son of the second Baron, represented Bromley in the House of Commons as a Conservative between 1919 and 1930.