| Sons | Grand-sons | |
Brookline Gladys   Beaver Brook Phenomenon (uk-usa) x Faybans Missile |
Young Monarch (usa)  Brookline Monarch x Brookline Gladys |
Lady Bess (usa 1906) Young Monarch (usa) x Winthrop Gyp |
| Sons | Grand-sons | |
| Brookline Gladys Beaver Brook Phenomenon (uk-usa) x Faybans Missile |
Young Monarch (usa) Brookline Monarch x Brookline Gladys |
Lady Bess (usa 1906) Young Monarch (usa) x Winthrop Gyp |