| Sons | Grand-sons | |
Lady Mossarg   Bert Best x Queen High |
Bounce (usa 1933)  Heather Boy x Lady Mossarg |
|
| Heather Boy Son O' Mike Double x Lady Mossarg |
||
| Sir John Bradford Heather Boy x Lady Mossarg |
| Sons | Grand-sons | |
| Lady Mossarg Bert Best x Queen High |
Bounce (usa 1933) Heather Boy x Lady Mossarg |
|
| Heather Boy Son O' Mike Double x Lady Mossarg |
||
| Sir John Bradford Heather Boy x Lady Mossarg |