Campbell, D. R., & O'Brien, W. (1917). Letter from D.R. [David Robert] Campbell to William O'Brien concerning the payment of Irish Transport and General Workers' Union members to attend meetings, and asking for O'Brien's advice on the matter.

Campbell, David Robert, and William O'Brien. Letter from D.R. [David Robert] Campbell to William O'Brien Concerning the Payment of Irish Transport and General Workers' Union Members to Attend Meetings, and Asking for O'Brien's Advice on the Matter. 1917.