| 馬名 | 性別 | 父 | 母 | 生年 |
|---|---|---|---|---|
| Proper Proof | 牡 | Prove It | Sunday Slippers | 1965 |
| Bargain Day | 牡 | Prove It | Special Price | 1965 |
| Prove It Oil | 騸 | Prove It | Judy Jump-Up | 1966 |
| ロジヤーズジユリエツト | 牝 | Prove It | Stage Whisper | 1966 |
| Chelsie's Proof | 牝 | Prove It | Chelsie | 1966 |
| Royal Fairway | 牝 | Prove It | Royal Wayfarer | 1966 |
| Show Cause | 牝 | Prove It | Orientation | 1966 |
| Rough Proof | 騸 | Prove It | Pagan Princess | 1966 |
| Kimberly Gold | 牡 | Prove It | Golden Earring | 1967 |
| Heavy Up | 牡 | Prove It | Bride of Note | 1967 |
| Idieh | 牝 | Prove It | Enchanted Song | 1967 |
| Danger Prove | 牝 | Prove It | Dangerous Curve | 1967 |
| Prove a Little | 牝 | Prove It | Clutha | 1967 |
| Prove It Lady | 牝 | Prove It | Lady in White | 1967 |
| With Evidence | 牡 | Prove It | Don't Linger | 1967 |
| Laureate | 牡 | Prove It | Book of Verse | 1967 |
| Regalness | 牝 | Prove It | Royal Butterfly | 1967 |
| Prince of Truth | 騸 | Prove It | Modest Princess | 1968 |
| Bonnie Lee | 牝 | Prove It | フリートフアン | 1968 |
| Prove It Roseola | 牝 | Prove It | Roseola | 1968 |