Red Jacket (Jack x Tiney)
Red Jacket (Jack x Tiney) 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 IIWebsite : http://www.asc-cockerspaniel.org/history/histoobo.asp | |
| Woodstock Dinah | |||
| Spunkey (Wilkes Obo x Black Flash) | Wilkes Obo | ||
| Black Flash (Obo II x Critic) | |||
| Unknown | Unknown | Unknown | Unknown |
| Unknown | |||
| Unknown | Unknown | ||
| Unknown | |||
| Unknown | Unknown | Unknown | |
| Unknown | |||
| Unknown | Unknown | ||
| Unknown | |||