Grey Wilkes ( 牝 Hautboy )
 |-- Snake Mare ( 牝 Snake )
 |   `-- Grey Robinson ( 牝 1723 芦毛 Bald Galloway )
 |   |   |-- Regulus ( 牡 1739 鹿毛 Godolphin Arabian )
 |   |   |-- Sister to Regulus ( 牝 1743 鹿毛 Godolphin Arabian )
 |   |   `-- Godolphin Arabian Mare ( 牝 1743 芦毛 Godolphin Arabian )
 |-- Old Country Wench ( 牝 1712 芦毛 Snake )
 |   `-- Partner Mare ( 牝 1735 栗毛 Croft's Partner )
 |   |   `-- Dionysius ( 牡 1752 鹿毛 Regulus )
 |-- Snake Mare ( 牝 1713 Snake )
 |   |-- Foxhunter ( 牡 1722 栗毛 Bald Galloway )
 |   |-- Shock ( 牡 1729 鹿毛 Jigg )
 |   `-- Squirt ( 牡 1732 栗毛 Bartlet's Childers )
 `-- Whimsey ( 牝 1722 鹿毛 Son of Jigg )
 |   `-- Romp ( 牝 1739 鹿毛 Derby's Looby )
 |   |   `-- Rural Lass ( 牡 1751 Regulus )