Pedigree Chart of Orbit, 2 Y-R, J. Lionel Richardson, Ireland, 1961
| Firebrand | |||||||
| Hospodar | |||||||
| King Alfred | |||||||
| Marksman | |||||||
| A.M. Wilson 2Y-R seedling | |||||||
| Ceylon | |||||||
| Firebrand | |||||||
| Hospodar | |||||||
| King Alfred | |||||||
| Diolite | |||||||
| A.M. Wilson 2Y-R seedling | |||||||
| Orbit | |||||||
| Gulliver | |||||||
| Seedling | |||||||
| unknown | |||||||
| Carbineer | |||||||
| Narvik | |||||||
| Porthilly |