| Sons | Grand-sons | |
Mackworth Bertie (form Mackworth Albert) (uk-usa)    Thursfield Prince x Smallshaw Duchess |
Berdie Queen  Mackworth Bertie (form Mackworth Albert) (uk-usa) x Beauty Queen (usa 1906) |
|
| English Gyp Mackworth Bertie (form Mackworth Albert) (uk-usa) x Gypsy May |
Beaumonac Swell Goswell Monach (uk-usa) x English Gyp |
|
| Britannicus Rex Goswell Monach (uk-usa) x English Gyp |
||
| Daremona Shackleton Goswell Monach (uk-usa) x English Gyp |
||
| Shackelton Ross Sea Goswell Monach (uk-usa) x English Gyp |
||
| Shackland Chief Goswell Monach (uk-usa) x English Gyp |
||
| Shackworth Trebla Goswell Monach (uk-usa) x English Gyp |
||
| Hewlett Lassie Mackworth Bertie (form Mackworth Albert) (uk-usa) x Dundee Borealis (uk-usa) |
||
Hewlett Tar Baby  Mackworth Bertie (form Mackworth Albert) (uk-usa) x Dundee Borealis (uk-usa) |
||
| Hypatia Mackworth Bertie (form Mackworth Albert) (uk-usa) x Yankee Girl (usa 1907) |
Princess Launcelot (usa 1915) Fotterell Doctor x Hypatia |
|
| Kewpie Mackworth Bertie (form Mackworth Albert) (uk-usa) x Beauty Queen (usa 1906) |
||
| Royalcote Alberta Mackworth Bertie (form Mackworth Albert) (uk-usa) x Royalcote Susan |
||
| Royalcote Lady Mackworth Bertie (form Mackworth Albert) (uk-usa) x Royalcote Susan |
||
| Shepard Cleopatra Mackworth Bertie (form Mackworth Albert) (uk-usa) x Neky |
Shepard Billie Boy Forward Beautiful Boy x Shepard Cleopatra |