| Figli | Nipoti | |
Iron Duchess   unknown x unknown |
Cintra Cissie Kilburn Terence (uk-usa) x Iron Duchess |
|
Priorscroft Duchess  Howard Bill x Iron Duchess |
Clearhead (scot-usa)   Whitewall x Priorscroft Duchess Whitewall x Priorscroft Duchess |
| Figli | Nipoti | |
| Iron Duchess unknown x unknown |
Cintra Cissie Kilburn Terence (uk-usa) x Iron Duchess |
|
| Priorscroft Duchess Howard Bill x Iron Duchess |
Clearhead (scot-usa) Whitewall x Priorscroft Duchess Whitewall x Priorscroft Duchess |