Mullen, Robert A. Correspondence, 1863-1865. Location: Misc.:M. A New Orleans native and Confederate naval officer; prisoner of war at Fort Warren, Boston, Massachusetts. Letters to Eliza Brenan of New Orleans, Louisiana, describe his emotional state and his experiences in the navy before his capture. Letters to Mullen from Sister Aloysius of the Caritas Carney Hospital in Boston remark on her attempts to have him released. For further information, see online catalog. Mss. 4140.