| Gen | Horse Name | DoB | Sex | Registration | Sire | Dam |
|---|---|---|---|---|---|---|
| 0 | RHONDDA MORWEN | Not Recorded | Mare | WSB 61613 | GWENLLAN DAFYDD | TANACRE LADY |
| 1 | GWENLLAN DAFYDD | Not Recorded | Stallion | WSB 15779 | BRENIN DAFYDD | GWENLLAN TULIP |
| 2 | BRENIN DAFYDD | Not Recorded | Stallion | WSB 4639 | CAHN DAFYDD | FRONARTH FLORA |
| 3 | CAHN DAFYDD | 1942 | Stallion | MATHRAFAL | GWENOGWEN | |
| 4 | MATHRAFAL | Not Recorded | Stallion | WSB 1629 | MAB-Y-BRENIN | POLL OF GOLFA |
| 5 | MAB-Y-BRENIN | Not Recorded | Stallion | WSB 1555 | MATHRAFAL BRENIN | HAFAN POLLY |
| 6 | MATHRAFAL BRENIN | Not Recorded | Stallion | WSB 873 | TROTTING RAILWAY II | GARNLYDAN DOLLY |
| 7 | TROTTING RAILWAY II | Not Recorded | Stallion | WSB 529 | No Record | No Record. |
| 8 | No Record | Not Recorded | Stallion |