| 馬名 | 性別 | 父 | 母 | 生年 |
|---|---|---|---|---|
| Box the Compass | 牝 | Quadrangle | Sailor's Hunch | 1967 |
| Joe Frazier | 牡 | Quadrangle | La Verde | 1967 |
| Line of Battle | 牝 | Quadrangle | Running Battle | 1967 |
| Lexington Park | 騸 | Quadrangle | Sunny Morn | 1967 |
| スクエアアツプ | 牝 | Quadrangle | Sucrette | 1967 |
| Quadrillion | 牝 | Quadrangle | Stylish Pattern | 1967 |
| クレアーブリツジ | 牝 | Quadrangle | Abeyance Lass | 1967 |
| Clare Court | 牝 | Quadrangle | エツヂオブイヴニング | 1967 |
| Quadravan | 牡 | Quadrangle | Paravant | 1967 |
| Comes Out Gray | 牡 | Quadrangle | Mixed Marriage | 1968 |
| My Dear Joan | 牝 | Quadrangle | Dear April | 1968 |
| Quadray | 牝 | Quadrangle | Summer Cloud | 1968 |
| Our Game | 牝 | Quadrangle | Your Game | 1968 |
| Triangle Miss | 牝 | Quadrangle | Ma Chere Amie | 1968 |
| Shifty Angle | 牡 | Quadrangle | Virginia Dare | 1968 |
| Scatter Plan | 牝 | Quadrangle | Purdah | 1968 |
| Private Empire | 騸 | Quadrangle | Benares | 1968 |
| Round Top | 牡 | Quadrangle | Sucrette | 1968 |
| Square Lady | 牝 | Quadrangle | Knot Hole | 1969 |
| Berta | 牝 | Quadrangle | Blitzed Eagle | 1969 |