| Texas Gulf Sulphur Company | 16 |
| Chemical industry--North Carolina--Aurora | 13 |
| Mining machinery--North Carolina--Aurora | 6 |
| Phosphate mines and mining--North Carolina--Aurora | 6 |
| Dwellings--North Carolina--Aurora | 3 |
| Mineral industries--North Carolina--Aurora | 3 |
| Suburbs--North Carolina--Aurora | 3 |
| Airplanes--North Carolina--Aurora | 2 |
| Construction equipment--North Carolina--Aurora | 2 |
| Cranes, derricks, etc.--North Carolina--Aurora | 2 |
| Central business districts--North Carolina--Aurora | 1 |
| Chemical laboratories--North Carolina--Aurora | 1 |
| Chemical workers--North Carolina--Aurora | 1 |
