O'Brien, A. P., & Duggan, É. (1922). Material relating to Art O'Brien's arrest and release from Maryborough, including newspaper cuttings, letters from O'Brien from prison to Minister for Home Affairs Éamonn Duggan, and two letters from Eileen Kennedy regarding a prison guard who threatened to kill O'Brien.

O'Brien, Art Patrick, and Éamonn Duggan. Material Relating to Art O'Brien's Arrest and Release from Maryborough, Including Newspaper Cuttings, Letters from O'Brien from Prison to Minister for Home Affairs Éamonn Duggan, and Two Letters from Eileen Kennedy Regarding a Prison Guard Who Threatened to Kill O'Brien. 1922.