| 馬名 | 父 | 母 | 生年 |
|---|---|---|---|
| Valerie | Sir Cosmo | Dereham | 1939 |
| Cosmo Girl | Sir Cosmo | Bellona | 1939 |
| Culverhill | Sir Cosmo | Fiddle | 1940 |
| Cosmetic | Sir Cosmo | Beautiful Girl | 1940 |
| Commissar | Sir Cosmo | Salar | 1940 |
| Costume | Sir Cosmo | Boscage | 1940 |
| Bellacosette | Sir Cosmo | Orbella | 1940 |
| The Clachan | Sir Cosmo | Evangeline | 1940 |
| Lady Kilmurry | Sir Cosmo | Kilmurry | 1940 |
| War Hero | Sir Cosmo | Canna | 1940 |
| Sweet Spice | Sir Cosmo | Cinnamon | 1940 |
| Canidia | Sir Cosmo | Buchna | 1940 |
| Knight's Daughter | Sir Cosmo | Feola | 1941 |
| Felasteen Cross | Sir Cosmo | Grey Velvet | 1941 |
| Good Morning | Sir Cosmo | Morning Dew | 1941 |
| Knights Daughter | Sir Cosmo | Feola | 1941 |
| Como | Sir Cosmo | Maia | 1942 |
| Gretta | Sir Cosmo | Egret | 1942 |
| Park Lane | Sir Cosmo | Stratton Street | 1943 |
| Lilting Lady | Sir Cosmo | The Bittern | 1944 |