| Subject | Parents | Grandparents | Great-Grandparents |
| LOPOSAY'S SYLVIA | LOPOSAY'S DIAMOND | COLBY'S TINKER II | COLBY'S OSCAR |
| COLBY'S DOLLY (1954) | |||
| BURKETTE'S DUTCH | BURKETTE'S DUTCH | ||
| COLBY'S TEXAS | |||
| COLBY'S TINKER II | COLBY'S OSCAR | Unknown | |
| Unknown | |||
| COLBY'S DOLLY (1954) | COLBY'S DIME | ||
| COLBY'S TIBBIE |
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 TINKER II | 6.25% | 1 | 1 | |
| COLBY’S OSCAR | 1.563% | 1 | 1 | |
| COLBY’S DOLLY (1954) | 1.563% | 1 | 1 | |
| COLBY’S DIME | 0.391% | 1 | 1 | |
| COLBY’S TIBBIE | 0.391% | 1 | 1 | |
| COLBY’S TWEEDIE | 0.098% | 1 | 1 | |
| COLBY’S PENNY (FULLER’S PENNY) | 0.098% | 1 | 1 |