| Picture File | Related File | Code |
|---|
| Sorrow | | SORR |
| Sound | | SOU |
| | Hearing aids | HEAR |
| | Insulation | INSUL |
| | Noise | NOI |
| Sound recording | | SOU–Rec |
| Soundings | | SOUN |
| South Africa | | SOUT |
| South Africa — 1899 & earlier | | SOUT–18 |
| South Africa — Cape Province | | SOUT–Cap |
| South Africa — Cape Town | | SOUT–Cape |
| South Africa — Cape Town–1899 & earlier | SOUT–Cape–18 |
| South Africa — Fauna & flora | | SOUT–Fau |
| South Africa — History | | SOUT–His |
| South Africa — Industries | | SOUT–Ind |
| South Africa — Johannesburg | | SOUT–Joh |
| South Africa — Life | | SOUT–Lif |
| South Africa — Life–1899 & earlier | SOUT–Lif–18 |
| South Africa — Mountains | | SOUT–Mou |
| South Africa — Natal Province | | SOUT–Nat |
| South Africa — Orange Free State | SOUT–Org |
| South Africa — Pretoria | | SOUT–Pre |
| South Africa — Rivers | | SOUT–Riv |
| South Africa — Transvaa1 | | SOUT–Tra |
| South Atlantic Islands | | SOUTH–Atl |
| South Carolina | | SOUTH–Car |
| South Carolina — 1899 & earlier | | SOUTH–Car–18 |
| South Carolina — A–Z | | SOUTH–Car–(A–Z) |
| South Carolina — Charleston | | SOUTH–Car–Cha |
| South Carolina — Charleston–1899& earlier | SOUTH–Car–Cha–18 |
| South Carolina — Life | | SOUTH–Car–Lif |
| South Dakota | | SOUTH–Dak |
| South Dakota — 1899 & earlier | | SOUTH–Dak–18 |
| South Dakota — A–Z | | SOUTH–Dak–(A–Z) |
| South Dakota — Mount Rushmore (Mount Rushmore National Memorial) | SOUTH–Dak–(A–Z) |
| Souvenirs | | SOUV |
| | Albums & scrapbooks | ALBU |
| Space travel | | SPA |
| Space travel — 1959 & earlier | | SPA–195 |
| Space travel — 1960s | | SPA–196 |
| Space travel — 1970s | | SPA–197 |
| Space travel — 1980s | | SPA–198 |
