| Result | Sire | Dam. | ||||
 |
F | < 1974 | Sandringham Dipper | Hedenhampark Mallard | Sandringham Slipper | |
|
M | 1974 | GB:F.T.CH: | Flightline Streaker | Hedenhampark Mallard | Flightline Jenny |
 |
F | < 1975 | Spioncop Heather | Hedenhampark Mallard | Trentlock Bluey | |
|
M | 1975 | GB:F.T.CH: | Meld Of Thoresby | Hedenhampark Mallard | Crowfield Cindy |
|
F | 1975 | Staindrop Medlar | Hedenhampark Mallard | Staindrop Melissa | |
|
M | 1975 | Toby Of Osprey | Hedenhampark Mallard | Ledenbrook Bonnie | |
|
F | < 1977 | Teal Of White Fen Drove | Hedenhampark Mallard | Bunting Of Moat Lodge | |
|
M | < 1978 | Tripwire Merry | Hedenhampark Mallard | Tripwire Mona | |
|
M | < 1984 | Spioncop Hurricane | Hedenhampark Mallard | Trentlock Bluey | |
|
F | < 1984 | Styleside Berry Of Drakeshead | Hedenhampark Mallard | Nandojane Of Styleside | |
| Result | Sire | Dam. | ||||
|
F | 1975 | Staindrop Medlar | Hedenhampark Mallard | Staindrop Melissa | |