Regarding two diaries in LSU's special collections, one maintained by a besieger and the other by a besieged within Vicksburg, Rasmussen writes that while “both diarists continued their entries for several more months, their complementary accounts of the siege of Vicksburg remain the most fruitful part of these invaluable resources for studying the campaign to capture the famous Confederate citadel on the Mississippi.”
"Civil War Treasures: The Siege of Vicksburg From Without and Within,"
Civil War Book Review: Vol. 23
Available at: https://repository.lsu.edu/cwbr/vol23/iss3/2