| 子 | 孫 | |
Kroo Tommy   Kroo Nigger (uk-usa) x Kroo Girl (uk-usa) |
Betsy Kroo  Kroo Tommy x Vic Queen (usa) |
Bola Barcina Tuff O' Toole x Betsy Kroo Tuff O' Toole x Betsy Kroo |
| El Valedo Mick Heywood Marco (uk-can) x Betsy Kroo Heywood Marco (uk-can) x Betsy Kroo |
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| Lady Marco Heywood Marco (uk-can) x Betsy Kroo Heywood Marco (uk-can) x Betsy Kroo |
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| Peggy (usa 1918 Dement) Heywood Marco (uk-can) x Betsy Kroo Heywood Marco (uk-can) x Betsy Kroo |
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| Peggy X V I I (usa) Heywood Marco (uk-can) x Betsy Kroo Heywood Marco (uk-can) x Betsy Kroo |
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| Sir Chance Chief Cimarron x Betsy Kroo Chief Cimarron x Betsy Kroo |
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| Kroo Bobby Kroo Tommy x Vic Queen (usa) |
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| Victor (usa) Kroo Tommy x Vic Queen (usa) |