| Name | Grattan Boy (US) |
| YoB | 1893 |
| Sex | horse |
| Colour | |
| Sire | Grattan (US), 1887 |
| Dam | Paula (US), 1883 |
| Damsire | Robert McGregor (US), 1871 |
| Breeder | |
| Birthplace |
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| - | Grattanlight (US) | mare | Grattan Boy (US), 1893 - | ||
| 1900 | Grattan Bells (US) | dark bay | horse | Grattan Boy (US), 1893 - Boquita (US), 1893 | R. H. Plant |
| 1905 | Rendezvous (AH) | black | mare | Grattan Boy (US), 1893 - Red Robe (US), 1899 | Pusztaberényi ménes (Gráner Albert) |