| 1st Generation Progeny | 2nd Generation Progeny | 3rd Generation Progeny |
|---|---|---|
| Topper Boy (D) by Oxcroft Rocket (D) | ||
| Topper Boy (D) by Oxcroft Rocket (D) | Rockingham Tamara () ex Mansergh Tawny Owl (B) | |
| Topper Boy (D) by Oxcroft Rocket (D) | Rockinghamwood Tamara (B) 01-08-1972 ex Mansergh Tawny Owl (B) | |
| Topper Boy (D) by Oxcroft Rocket (D) | Rockinghamwood Tandy (D) ex Corburn Corncracker (B) | Robert's Girl (B) ex Mansergh Tawny Owl (B) |
| ... | ... | Rockinghamwood Tartar Lad (D) ex Mansergh Tawny Owl (B) |
| ... | Rockinghamwood Tempest Boy (D) ex Mansergh Tawny Owl (B) | Mansergh Whoopee (B) 22-11-1975 ex Mansergh Wanna Be Evil (B) |
| ... | ... | Mansergh Wild Oats (D) 22-11-1976 ex Mansergh Wanna Be Evil (B) |
| ... | ... | Mansergh Will-O-The-Wisp (D) 22-11-1975 ex Mansergh Wanna Be Evil (B) |
| ... | ... | Mansergh Would-Be-Good (B) 22-11-1975 ex Mansergh Wanna Be Evil (B) |
| ... | ... | Rockinghamwood Tanzy (B) ex Rockinghamwood Teazel (B) |
| ... | Rockinghamwood Toby (D) ex Rockinghamwood Tripoli (B) |
SLEM Test codes: S:Cl = Clear | S:HC = Hereditary Clear | S:Ca = Carrier | S:Af = Affected
