| 馬名 | 性別 | 父 | 母 | 生年 |
|---|---|---|---|---|
| Cojill | 牝 | Cojak | Gay Jill | 1980 |
| Lady Hawthorn | 牝 | Cojak | Herb's Judy | 1980 |
| Pete's Punch | 牡 | Cojak | Traffic Note | 1981 |
| Carjack | 牡 | Cojak | Worlds of Fun | 1981 |
| Cojetta | 牝 | Cojak | Onego | 1981 |
| Fighting Marietta | 牝 | Cojak | Herb's Judy | 1982 |
| Skyjak | 牝 | Cojak | Alpine Garden | 1982 |
| Lollipop Princess | 牝 | Cojak | Worlds of Fun | 1982 |
| Calico Jak | 牡 | Cojak | Alpine Garden | 1983 |
| Worldly News | 騸 | Cojak | Review of the News | 1984 |
| Great Contract | 牡 | Cojak | Embraceable You | 1984 |
| Covibes | 牝 | Cojak | Vibes | 1984 |
| T. V. Detective | 牡 | Cojak | Annie Aaron | 1985 |
| Ken's Hero | 牡 | Cojak | Love Omie | 1985 |
| Cajun Cojak | 牡 | Cojak | Onego | 1985 |
| Co Wings | 牝 | Cojak | Wings of the Wind | 1985 |
| Corrected | 牡 | Cojak | Dihela | 1985 |
| Christofle | 牝 | Cojak | Classic Ambition | 1985 |
| Wild Apple | 牝 | Cojak | Symbionese | 1985 |
| Breezing Cool | 牝 | Cojak | Exclusive Devil | 1985 |