| breed | Thoroughbred |
| color / sex / birth date | f ., |
| breeder | USA |
| Dam line | Fearnought mare |
| foaling reference | Ам. |
| Owner | USA |
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Old Union
(USA)
USA bay, 1777 |
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The Kirtley mare
(USA)
USA chestnut, |
Madisons Milo
(USA)
br., |
Meades Celer
(USA)
chestnut, 1776 |
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Fearnought mare
(USA)
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Fearnought
(GB)
bay, 1755 |
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Janus mare number one
(USA)
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