O'Brien, W. (1929). Copy-letter from [William O'Brien] to the treasurers of the "Gordon Testimonial" acknowledging receipt of their letter, with inscriptions by O'Brien concerning the American Socialist Party's appeal for the dependants of socialists killed during the Easter Rising.

O'Brien, William. Copy-letter from [William O'Brien] to the Treasurers of the "Gordon Testimonial" Acknowledging Receipt of Their Letter, with Inscriptions by O'Brien Concerning the American Socialist Party's Appeal for the Dependants of Socialists Killed During the Easter Rising. 1929.