| 馬名 | 性別 | 父 | 母 | 生年 |
|---|---|---|---|---|
| Hillhouse High | 牝 | Quadrangle | Blue Banner | 1971 |
| Tower of London | 牝 | Quadrangle | ダブルドア | 1971 |
| Kew Gardens | 牡 | Quadrangle | Polyanthus | 1971 |
| Freedom Square | 牝 | Quadrangle | Bravely | 1972 |
| Bori | 牝 | Quadrangle | Lucretia Bori | 1972 |
| Fair and Square | 騸 | Quadrangle | Hasty Landing | 1972 |
| Harvard Square | 牡 | Quadrangle | Beck Road | 1972 |
| Shenandoah Valley | 牝 | Quadrangle | Panther Skin | 1972 |
| Bremo | 牡 | Quadrangle | Rose River | 1973 |
| Egladil | 牡 | Quadrangle | Join the Waves | 1973 |
| Loudrangle | 牝 | Quadrangle | Lady Known as Lou | 1974 |
| Upon Reflection | 牝 | Quadrangle | King's Wife | 1974 |
| Maria's Baby | 牝 | Quadrangle | Round Figures | 1974 |
| Senior Director | 騸 | Quadrangle | Port of Call | 1974 |
| I Present | 牝 | Quadrangle | Scarlett O'Hara | 1974 |
| Square Dance | 牝 | Quadrangle | Gallant Quilla | 1974 |
| Dream World | 牝 | Quadrangle | Idle Thoughts | 1974 |
| Spirit Level | 牡 | Quadrangle | Due Dilly | 1974 |
| Happy Vixen | 牝 | Quadrangle | Nangela | 1974 |
| Maggie O'Brien | 牝 | Quadrangle | Rare Exchange | 1974 |