Hamilton Jill
Hamilton Jill Victor (Wildair x Nellie) | Wildair | Whitman's Doctor | Unknown |
| Unknown | |||
| Waddell's Josie |  Finlay's Dan (Findley's Dan) | ||
| Hubbell's Belle | |||
| Nellie (Doctor x Josie) | Whitman's Doctor | Unknown | |
| Unknown | |||
| Waddell's Josie | Finlay's Dan (Findley's Dan) | ||
| Hubbell's Belle | |||
| Hamilton Jet |  Little Red Rover |  Obo IIWebsite : http://www.asc-cockerspaniel.org/history/histoobo.asp | Farrow's Obo |
| Pitchers Chloe II | |||
| Woodstock Dinah | Kelly's Tippoo | ||
| Toronto Jet | |||
| Spunkey (Wilkes Obo x Black Flash) | Wilkes Obo | Obo II Website : http://www.asc-cockerspaniel.org/history/histoobo.asp | |
| Darkie I (Beau x Blackie) | |||
| Black Flash (Obo II x Critic) | Obo II Website : http://www.asc-cockerspaniel.org/history/histoobo.asp | ||
| Critic (Watermark x Blackie II) | |||