| Sons | Grand-sons | |
Marilyn Lucy   Challenger Cracker (uk-can) x Jersey Annabelle |
Big Boy (usa 1925)  Melbourne Spark Plug Bellingham (usa) x Marilyn Lucy |
|
| Jaggsie Boy Melbourne Spark Plug Bellingham (usa) x Marilyn Lucy |
| Sons | Grand-sons | |
| Marilyn Lucy Challenger Cracker (uk-can) x Jersey Annabelle |
Big Boy (usa 1925) Melbourne Spark Plug Bellingham (usa) x Marilyn Lucy |
|
| Jaggsie Boy Melbourne Spark Plug Bellingham (usa) x Marilyn Lucy |