Mohican (Jack x Topsy)
Mohican (Jack x Topsy) Hamilton Jack |  Victor (Wildair x Nellie) | Wildair | Whitman's Doctor |
| Waddell's Josie | |||
| Nellie (Doctor x Josie) | Whitman's Doctor | ||
| Waddell's Josie | |||
| Hamilton Jet | Little Red Rover |  Obo IISite Web : http://www.asc-cockerspaniel.org/history/histoobo.asp | |
| Woodstock Dinah | |||
| Spunkey (Wilkes Obo x Black Flash) | Wilkes Obo | ||
| Black Flash (Obo II x Critic) | |||
| Raven Topsy | King Raven | Black Duke | Obo II Site Web : http://www.asc-cockerspaniel.org/history/histoobo.asp |
| Woodland Queen | |||
| Topsy S (Searles' Topsy) | Black Graf | ||
| Chien (Chein) (Hector x Black Meg) | |||
| Lady Raven | Sport (Brant x Raven Bess) | Brant (Sir Obo) | |
| Raven Bess | |||
| Nellie (Paddie x Peggie) | Inconnu | ||
| Inconnu | |||