| Name | Diplomat Hanover (US) |
| YoB | 1949 |
| Sex | horse |
| Colour | dark bay |
| Sire | Volomite (US), 1926 |
| Dam | Lucy Hanover (US), 1938 |
| Damsire | Mr McElwyn (US), 1921 |
| Breeder | |
| Birthplace |
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| 1956 | Expresson (US) | dark bay | mare | Diplomat Hanover (US), 1949 - Record Express (US), 1946 | |
| 1957 | Miss Express (US) | mare | Diplomat Hanover (US), 1949 - Record Express (US), 1946 | ||
| 1962 | Matann (US) | horse | Diplomat Hanover (US), 1949 - Dauntless Ann (US), 1951 |