May Day (US)
| Year of Birth | 0 |
| Sex | horse |
| Colour | chestnut |
| Sire | Henry (Sir Henry) xx (USA) |
| Dam | ? |
| Damsire | ? |
| Breeder | |
| Birthplace |
Pedigree
| May Day | Henry (Sir Henry) xx (USA) | Sir Archy xx (USA) | Diomed xx (GB) |
| Castianira xx (GB) | |||
| Diomed Mare xx (USA) | Diomed xx (GB) | ||
| Bellona xx (USA) | |||
| ? | ? | ? | |
| ? | |||
| ? | ? | ||
| ? |
Foals
| YoB | Name | Colour | Sex | Pedigree | Breeder | Birthplace |
|---|---|---|---|---|---|---|
| Dam of Madam Dudley (US) | mare | May Day (US) - ? | ||||
| May Day Jr. (US) | horse | May Day (US) - | ||||
| Dam of Lucy (US) | mare | May Day (US) - Grandam of Lucy (US) |