Appendix: Guide to War Department Decimal System
| Container Nos. | File Nos. | Subjects |
|---|---|---|
| 1 | 000. | General (politics, historical) |
| 1 | 100. | Finance and accounting |
| 1-6 | 200. | Personnel |
| 7-18 | 300. | Administration (regulations, orders) |
| 18-19 | 400. | Supplies and equipment |
| 19 | 500. | Transportation |
| 19-20 | 600. | Buildings and grounds |
| 20 | 700. | Medicine, hygiene and sanitation |