| Meno | May Day (US) |
| Rok nar. | |
| Pohlavie | žrebec |
| Farba | ryšavá |
| Otec | Henry (Sir Henry) xx (USA), 1819 |
| Matka | ? |
| Otec matky | ? |
| Chovateľ | |
| Miesto narodenia |
| May Day (US) | Henry (Sir Henry) xx (USA), 1819 | Sir Archy xx (USA), 1805 | Diomed xx (GB), 1777 |
| Castianira xx (GB), 1796 | |||
| Diomed Mare xx (USA), 1804 | Diomed xx (GB), 1777 | ||
| Bellona xx (USA) | |||
| ? | ? | ? | |
| ? | |||
| ? | ? | ||
| ? |
| Farba | Pohlavie | Pôvod | Chovateľ | ||
|---|---|---|---|---|---|
| - | Dam of Lucy (US) | kobyla | May Day (US) - Grandam of Lucy (US) | ||
| - | Dam of Madam Dudley (US) | kobyla | May Day (US) - ? | ||
| - | May Day Jr. (US) | žrebec | May Day (US) - |