Glenboig Fireclay Company
Dates
| / /1865 | Glenboig Fireclay Company Formed by James Dunnachie with John Hurll and John Young. |
| / /1872 | Star Fireclay Works Opened at Glenboig by James Dunnachie to compete with the Glenboig Fireclay Company. |
| / /1872 | Glenboig Fireclay Company Partnership splits, James Dunnachie leaves. |
| / /1882 | Glenboig Union Fireclay Company Formed by merger of the Glenboig Fireclay Company and James Dunnachies Star Fireclay Works. |
