| Name and Surname | Relationship | Age - Years & Months | Marriage or Orphanhood | Birthplace | Nationality | Education | Occupation | Employment | Place of Work | Number & Ages of Living Children under 16 | Language Spoken |
| Trefor Thos Lewis | Head | 24 - 1 | Married | Glamorgan Cymmer | Colliery Pump Man | G Cenavon-Garw Co. | Glun Cymmer Colliery Cymmer | None | Both | ||
| Emily Charlotte Lewis | Wife | 22 - 9 | Married | Glamorgan Kenfig Hill | Home duties | English |
| Address | 4 School Rd, Cymmer |
| Place | Glyncorrwg, Glamorganshire |
| Registration District | Neath |
| Registration Sub-district | Glyncorrwg |
| Enumeration District | 4 |
| Schedule | 134 |
Source: Ancestry - 1921 Census