 In 1903, South Glamorgan became the focus of an internal battle within the Liberal Party around whether a labour representative should become the candidate.Although the miners composed only a fifth of the electorate, the claims of William Brace, vice president of the South Wales Miners Federation were also championed by the dockworkers of Barry.Following the intervention of the Liberal Chief Whip, Brace was duly chosen and won the seat in 1906.