In 1909, Lewis Merthyr Consolidated Collieries Ltd. began the sinking of two shafts – Catherine and Anne Pits, named after daughters of Sir William Thomas Lewis, the head of the combine. The first sod was cut on 25th August 1909.
The No. 2 Rhondda house coal seam was proved in the Catherine Pit at a depth of 749 feet and in the Anne Pit at 781 feet and was worked extensively throughout the life of the colliery.
The No. 3 Rhondda seam was proved in the Anne Pit at 1054 feet but it was not worked extensively.
A third shaft called Mary Pit was sunk in 1923 to the west of the River Ogmore but was abandoned in Running Sand at a depth of about 60 feet. The colliery was abandoned on 08th November 1924.
| Surname | Forename(s) | Age | Date |
|---|---|---|---|
| Brooks | David John | 13 | 25th Jul 1916 |
| Clatworthy | John | 45 | 3rd Apr 1924 |
| Evans | Richard | 31 | 18th May 1912 |
| Gunner | William | 29 | 1st Dec 1921 |
| John | Daniel | 38 | 15th Aug 1910 |
| Lewis | Cyril | 27 | 2nd Oct 1923 |
| Lewis | Edmund J. | 29 | 19th Nov 1915 |
| Plaister | W.W. | 38 | 10th Jan 1915 |
| Richards | Wlliam | 44 | 15th Aug 1910 |
| Sherman | Reginald | 15 | 28th Apr 1922 |
| Sweet | Thomas | 38 | 26th Jul 1917 |
| Tilbury | W. | 42 | 11th May 1924 |
