These documents, which were the possessions of the Tabuchi family, include various ledgers and other documents related to the management of family properties such as salt farms, and they reveal a lot about the diverse operations of salt farm landowners. The documents also show how the garden was used at the time and include records of visits by feudal lords, tea ceremonies, and garden banquets. Each successive head of the Tabuchi family was well versed in tea ceremony and the performing arts, and the documents also include various books related to the performing arts. These documents allow us to understand the life and culture of the salt farm landowners.