| # | Reference code | Title | Dates | Access restrictions |
|---|---|---|---|---|
| 1 | NLW MS 19715A. | Railway routes through the pampas, | 1907, April-June. | None |
| 2 | NLW MS 19716A. | A journey along the River Chubut, | [?early 20 cent.]. | None |
| 3 | NLW MS 19717A. | Chubut Valley canals and dykes, | [early 20 cent.]. | None |
| 4 | NLW MS 19718E. | Edward Jones Williams papers, | 1878-1908. | None |