| Code | PersonName | Dates |
| DS/UK/806 | Brierley Hill, Staffordshire, UK; The Earl of Dudley's Round Oak Works Ltd.; 1897 - 1936 | 1897 - 1936 |
| DS/UK/550 | Brierley Hill, Staffordshire, UK; The Earl of Dudley's Round Oak Iron & Steel Works Ltd.; c1890-1897 | c1890-1897 |
| DS/UK/912 | Brierley Hill, Staffordshire, UK; Round Oak Ironworks; 1857-c1890 | 1857-c1890 |
| DS/UK/1032 | Brierley Hill, Staffordshire, U.K.; Round Oak Steel Works Ltd.; 1936-1982 | 1936-1982 |