siblings of Theo. Cook xx

half siblings paternal

stallion Broomstick xx (Thoroughbred, 1901, from Ben Brush xx)

Broomstick xx

broodmare Belgravia xx (Thoroughbred, 1903, from Ben Brush xx)

Belgravia xx

stallion Delhi xx (Thoroughbred, 1901, from Ben Brush xx)

Delhi xx

stallion Sweep xx (Thoroughbred, 1907, from Ben Brush xx)

Sweep xx

stallion Sweeper xx (Thoroughbred, 1901, from Ben Brush xx)

Sweeper xx

broodmare Umbra xx (Thoroughbred, 1903, from Ben Brush xx)

Umbra xx

broodmare Idle Fancy xx (Thoroughbred, 1904, from Ben Brush xx)

Idle Fancy xx

broodmare Lady Amelia xx (Thoroughbred, 1901, from Ben Brush xx)

Lady Amelia xx

stallion Pebbles xx (Thoroughbred, 1912, from Ben Brush xx)

Pebbles xx

stallion Von Tromp xx (Thoroughbred, 1902, from Ben Brush xx)

Von Tromp xx

broodmare Ballet xx (Thoroughbred, 1910, from Ben Brush xx)

Ballet xx

broodmare Stepping Stone xx (Thoroughbred, 1904, from Ben Brush xx)

Stepping Stone xx