| 馬名 | 父 | 母 | 生年 | ファミリー |
|---|---|---|---|---|
| Rum Bottle Bay | Thinking Cap | Sea Snack | 1959 | f1a |
| Smart | Thinking Cap | Enchanted Eve | 1959 | f4r |
| Witching Hour | Thinking Cap | Enchanted Eve | 1960 | f4r |
| Capped | Thinking Cap | Noble Nurse | 1961 | f1n |
| Glen Arm | Thinking Cap | Fairy Lily | 1961 | f8g |
| Ways to Learn | Thinking Cap | Worth Saving | 1962 | f1h |
| Prayer Cap | Thinking Cap | Prayer Bell | 1962 | f9b |
| College Boards | Thinking Cap | Atwitter | 1962 | f1x |
| Set a Cap | Thinking Cap | Enchanted Eve | 1962 | f4r |
| Enidne | Thinking Cap | Endine | 1962 | f1a |
| Kyrenia | Thinking Cap | Enchanted Eve | 1963 | f4r |
| Set Your Cap | Thinking Cap | Miss Flybai | 1963 | f1h |
| Harrow on the Hill | Thinking Cap | Hillowton | 1967 | f1l |