| Subject | Parents | Grandparents | Great-Grandparents |
| COLBY'S RUSSELL (DOOLEY'S DUFFY) | COLBY'S TINKER II | COLBY'S OSCAR | Unknown |
| Unknown | |||
| COLBY'S DOLLY (1954) | COLBY'S DIME | ||
| COLBY'S TIBBIE | |||
| COLBY'S BRIDGET | COLBY'S PRINCE | COLBY'S PUMPSIE | |
| COLBY'S WINNIE | |||
| COLBY'S JILL | COLBY'S MORGAN | ||
| COLBY'S DOLLY (1954) |
5-generation analysis based on pedigree data
| 0% | No common ancestors (ideal) | |
| 6.25% | First cousins | |
| 12.5% | Half-siblings / Grandparent | |
| 25% | Full siblings / Parent-offspring | |
| >25% | Multi-generational inbreeding |
| Ancestor | COI Contribution | Sire Paths | Dam Paths | Impact |
|---|---|---|---|---|
| COLBY’S TIBBIE | 1.758% | 2 | 4 | |
| COLBY’S DOLLY (1954) | 1.563% | 1 | 1 | |
| COLBY’S DIME | 0.781% | 1 | 2 | |
| WALLACE’S ZOE | 0.293% | 2 | 2 | |
| O’NEIL’S BILLY | 0.293% | 2 | 2 | |
| WALLACE’S RED SQUAW | 0.195% | 1 | 2 |