Red Mike (Hamilton Jack x Hiata)
Red Mike (Hamilton Jack x Hiata) Hamilton Jack |  Victor (Wildair x Nellie) | Wildair | Whitman's Doctor | Unknown | Unknown | Unknown |
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| Waddell's Josie |  Finlay's Dan (Findley's Dan) | Unknown | Unknown | |||
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| Hubbell's Belle | Hubbell's Beau | Boulton's Rex | ||||
 Boulton's Rhea | ||||||
| Hubbell's Blanche | Powley's Ben | |||||
| Boulton's Fern | ||||||
| Nellie (Doctor x Josie) | Whitman's Doctor | Unknown | Unknown | Unknown | ||
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| Waddell's Josie | Finlay's Dan (Findley's Dan) | Unknown | Unknown | |||
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| Hubbell's Belle | Hubbell's Beau | Boulton's Rex | ||||
| Boulton's Rhea | ||||||
| Hubbell's Blanche | Powley's Ben | |||||
| Boulton's Fern | ||||||
| Hamilton Jet | Little Red Rover | Obo II Website : http://www.asc-cockerspaniel.org/history/histoobo.asp | Farrow's Obo | Farrow's Fred |  Bullock's Bebb | |
| Farrow's Minnie | ||||||
| Farrow's Betty | Farrow's Emperor | |||||
| Farrow's Mary | ||||||
| Pitchers Chloe II | Bullock's Dash | Bullock's Bebb | ||||
| Bullock's Flirt | ||||||
| Bullock's Nellie | Young Beb | |||||
| Bullock's Flirt | ||||||
| Woodstock Dinah | Kelly's Tippoo | Earl Of Morley's Dog | Unknown | |||
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| Earl Of Morley's Bitch | Unknown | |||||
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| Toronto Jet | Nicholls' Nigger | Bullock's Palm | ||||
| Bullock's Flirt | ||||||
| Walmsley's Belle | Unknown | |||||
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| Spunkey (Wilkes Obo x Black Flash) | Wilkes Obo | Obo II Website : http://www.asc-cockerspaniel.org/history/histoobo.asp | Farrow's Obo | Farrow's Fred | ||
| Farrow's Betty | ||||||
| Pitchers Chloe II | Bullock's Dash | |||||
| Bullock's Nellie | ||||||
| Darkie I (Beau x Blackie) | Easten's Beau | Boulton's Rolf | ||||
| Boulton's Belle | ||||||
| Easten's Blackie | Boulton's Rolf | |||||
| Boulton's Belle | ||||||
| Black Flash (Obo II x Critic) | Obo II Website : http://www.asc-cockerspaniel.org/history/histoobo.asp | Farrow's Obo | Farrow's Fred | |||
| Farrow's Betty | ||||||
| Pitchers Chloe II | Bullock's Dash | |||||
| Bullock's Nellie | ||||||
| Critic (Watermark x Blackie II) | Watermark (Brush II) | Boulton's Brush | ||||
| Boulton's Rhea | ||||||
| Blackie II (Beau x Blackie) | Easten's Beau | |||||
| Easten's Blackie | ||||||
| Hiata (? x ?) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
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