The Archives possesses twenty-three accounting ledger books, overseen by accountant Lun-hui Hsiao (?–?), that record the annual financial reports of the early IHP, namely 1928–1946. There are two types, total—or general—and daily expense accounts, which document the income and expenses of the IHP by item and according to time, respectively. These books are also often filled with various correspondences, notes, receipts, and invoices which serve to verify the funding items.