Miss Belvoir ( 牝 芦毛 Grey Grantham )
 |-- Sister One to Steady ( 牝 芦毛 Flying Childers )
 |   |-- Allworthy ( 牡 1744 芦毛 Crab )
 |   |-- Feather ( 牡 1751 鹿毛 Godolphin Arabian )
 |   `-- Horatia ( 牝 1758 鹿毛 Blank )
 |   |   |-- Spectator Mare ( 牝 1763 鹿毛 Spectator )
 |   |   |-- Sister to Juno ( 牝 1763 鹿毛 Spectator )
 |   |   `-- Juno ( 牝 1764 鹿毛 Spectator )
 |-- Sister Two to Steady ( 牝 芦毛 Flying Childers )
 |   `-- Ancaster Blossom ( 牝 1742 芦毛 Crab )
 |   |   |-- Gaudy ( 牝 1760 芦毛 Blank )
 |   |   `-- Chrysolite ( 牡 1763 栗毛 Blank )
 |-- Grey Childers ( 牡 1729 芦毛 Flying Childers )
 |-- Young Miss Belvoir ( 牝 1730 芦毛 Flying Childers )
 |   `-- Miss ( 牝 1742 栗毛 Lath )
 |   |   `-- Fairy ( 牝 1754 鹿毛 Shepherd's Crab )
 |-- Sister Three to Steady ( 牝 1734 芦毛 Flying Childers )
 |   `-- Godolphin Blossom ( 牝 1742 芦毛 Crab )
 |   |   |-- Sister to Cripple ( 牝 Godolphin Arabian )
 |   |   |-- Cripple ( 牡 1750 芦毛 Godolphin Arabian )
 |   |   |-- Cygnet ( 牡 1751 芦毛 Godolphin Arabian )
 |   |   `-- Bonduca ( 牝 1760 鹿毛 Bandy )
 `-- Steady ( 牡 1735 芦毛 Flying Childers )