Duffy, G. G., McGarrity, J., Duffy, M. G., & McCartan, P. (1919). Correspondence from George Gavan Duffy and his wife Margaret Gavan Duffy to Joseph McGarrity and Patrick McCartan, mainly relating to the Irish Republican Mission to the United States of America and Sir Roger Casement.

Duffy, George Gavan, et al. Correspondence from George Gavan Duffy and His Wife Margaret Gavan Duffy to Joseph McGarrity and Patrick McCartan, Mainly Relating to the Irish Republican Mission to the United States of America and Sir Roger Casement. 1919.