Columbia subject headings:
Labor movement--England--History.
Roberts, W. P. (William Prowting), 1806-1871.
Harvard subject headings:
Labor laws and legislation--Great Britain--History
Labor lawyers--Great Britain--Biography.
Lawyers--Great Britain--Biography
Roberts, W. P. (William Prowting), 1806-1871.
Princeton subject headings:
Labor movement--England--History.
Roberts, W. P. (William Prowting), 1806-1871.