黒田清綱書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
大久保家蔵黒田清綱書翰
Shimazu Collection - Historiographical Institute, The University of Tokyo
瀧澤書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
川上書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
薩藩士某書翰
Shimazu Collection - Historiographical Institute, The University of Tokyo
大久保利通・西郷従道書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
大山季連書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
島津多衛門書翰（桂久武・大山綱良宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
友野長祥書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
山名平之丞書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
津田常胤書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
赤山宮内書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
有川矢九郎書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
有川矢九郎書翰（有川丑之助・二之介宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
有川七之助書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
上原彦之丞書翰（伊地知貞馨宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
桂久脉書翰（薗田格右衛門宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
五島盛徳書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
佐久間頼母書翰（桂久武宛）
Shimazu Collection - Historiographical Institute, The University of Tokyo
犬童権左衛門書翰
Shimazu Collection - Historiographical Institute, The University of Tokyo
