Columbia subject headings:
Harvard subject headings:
Daimyo--Japan--Correspondence.
Japan--History--Restoration, 1853-1870.
Matsudaira, Yoshinaga, 1828-1890--Correspondence.
Princeton subject headings:
Daimyo--Japan--Correspondence.
Japan--History--Restoration, 1853-1870.
Matsudaira, Yoshinaga, 1828-1890--Correspondence.