Chestnut III
Chestnut III Chestnut II |  Black Rock | Jersey (Obo II x Darkie) | Obo II Site Web : http://www.asc-cockerspaniel.org/history/histoobo.asp |
| Darkie I (Beau x Blackie) | |||
| Rockland Belle |  Rollo | ||
| Kitty (Obo II x Lady Of Learning) | |||
| Thomas' Lady Roza | King Of Obo's | Obo II Site Web : http://www.asc-cockerspaniel.org/history/histoobo.asp | |
| Darkie I (Beau x Blackie) | |||
| Snow II | Farrow's Obo | ||
| Snow (Bramble x Nell) | |||
| Nettie (Red Obo x Brunette) |  Red Obo | Red Roland | Brantford Red Jacket |
| Pearl (Hector x Black Meg) | |||
| Devon Beauty | Lad'O Devon | ||
| Woodstock Dinah | |||
| Towbridge Brunette | Ansley's Sambo | Inconnu | |
| Inconnu | |||
| Ely Belinda | Inconnu | ||
| Inconnu | |||