| Poco Dakota Buck Grullo 1992 3099147 | Perty Buck Poco Grullo 1975 1157957 | Mr Blackburn 41 Dun 1963 0246868 | Pretty Buck Brown 1942 0002103 | Pretty Boy Brown 1928 0002229 |
| Mare by Buck Thomas Unknown Unknown U0074608 | ||||
| Lady Cowan 6 Bay 1950 0072255 | Blackburn Dun 1927 0002228 | |||
| Cowan Mare Unknown Unknown U0069865 | ||||
| Mr 14's Susie Dun 1964 0341419 | Mr Blackburn 14 Dun 1961 0186290 | Poco Bob Dun 1952 0042956 | ||
| Lady Cowan 10 Dun 1950 0072237 | ||||
| Bert's Susie Bee Gray 1954 0111261 | Buster W Bay 1947 0011514 | |||
| Bert's Bay Susie Bay 1948 0098364 | ||||
| Dakota Widow Lady Grulla 1984 2209234 | Fortys Bonus Bay 1975 1139930 | Mr Blackburn 40 Bay 1963 0246867 | Pretty Buck Brown 1942 0002103 | |
| Lady Cowan 5 Dun 1950 0072249 | ||||
| Blackburn 53 Dun 1964 0302194 | Poco Eagle Brown 1956 0060512 | |||
| May Blackburn Dun 1938 0071938 | ||||
| Poco Widow Duck Bay 1971 0784512 | Poco Hiball Bay 1960 0135442 | Poco Bueno Brown 1944 0003044 | ||
| Lady Chock 56 Sorrel 1951 0047767 | ||||
| Susan Blackburn Grulla 1958 0090041 | Dakota Grullo 1947 0022002 | |||
| Widow Duck Dun 1948 0022023 |