| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| SUMMER HILL TRINKET | Mare | BROWN | 44107 | 01/11/1967 | Stud Book | Deceased |
| SUMMER HILLS JEWEL | Mare | GREY | 3757 | Stud Book | Deceased | |
| SUMMER LADY | Mare | BAY | 24796 | 12/02/1973 | Stud Book | Not Eligible |
| SUMMER LEA BESS | Mare | BLACK | 21436 | Stud Book | Deceased | |
| SUMMER LEA BLAZE | Mare | BAY | 21437 | Stud Book | Deceased | |
| SUMMER LEA DAINTY STAR | Mare | DUN | 21438 | Stud Book | Deceased | |
| SUMMER LEA MANYARNA | Mare | CHESTNUT | 18238 | 10/10/1965 | Stud Book | Deceased |
| SUMMER LEA SULLIVAN | Gelding | GREY | 28655 | Stud Book | Not Eligible | |
| SUMMER LOVIN | Mare | BAY/DUN | 238401 | 17/01/2010 | Stud Book | Eligible |
| SUMMER LUKE | Stallion | BAY/BROWN | C2-245311 | 01/12/2015 | Second Cross | Eligible |
| SUMMER MAGIC | Mare | CHESTNUT | 40313 | 01/09/1975 | Stud Book | Not Eligible |
| SUMMER MINT | Mare | BAY | 77934 | 28/09/1987 | Stud Book | Deceased |
| SUMMER MONEY | Mare | CHESTNUT | F29320 | 20/12/1980 | Foal Recorded | Not Eligible |
| SUMMER NIGHTS | Gelding | GREY | 57689 | 11/10/1977 | Stud Book | Not Eligible |
| SUMMER NIGHTS SANDY | Mare | BUCKSKIN | R-264387 | 24/11/2014 | Base Registry | Not Eligible |
| SUMMER NOON | Mare | CHESTNUT | 64983 | 15/01/1979 | Stud Book | Deceased |
| SUMMER PENDING | Mare | CHESTNUT | 40327 | 01/08/1974 | Stud Book | Not Eligible |
| SUMMER QUEEN | Mare | BROWN | 54450 | Stud Book | Not Eligible | |
| SUMMER ROSE | Mare | BROWN | 101283 | 26/10/1981 | Stud Book | Not Eligible |
| SUMMER SERENADE | Mare | BAY | 116971 | 12/12/1990 | Stud Book | Not Eligible |
| SUMMER SET | Mare | BAY | 40282 | Stud Book | Not Eligible | |
| SUMMER SHINE | Mare | BLACK | 73655 | 01/01/1981 | Stud Book | Not Eligible |
| SUMMER SIOUX | Stallion | CHESTNUT | 23420 | 13/01/1972 | Stud Book | Deceased |
| SUMMER SKYE | Mare | CHESTNUT | F33148 | 21/08/1982 | Foal Recorded | Not Eligible |
| SUMMER SMILES | Mare | BAY | 31649 | Stud Book | Not Eligible | |
| SUMMER SONG | Mare | BLACK | 77677 | 29/11/1982 | Stud Book | Eligible |
| SUMMER STAR | Mare | BAY | F21087 | 08/12/1979 | Foal Recorded | Not Eligible |
| SUMMER STORM | Gelding | BROWN | 18241 | 20/02/1971 | Stud Book | Deceased |
| SUMMER SUE | Mare | BROWN/BLACK | 60116 | 08/11/1978 | Stud Book | Deceased |
| SUMMER VALE NUNATAK | Mare | CHESTNUT | 41474 | Stud Book | Deceased | |
| SUMMER WINE | Gelding | CHESTNUT | 46889 | 31/12/1974 | Stud Book | Not Eligible |
| SUMMERFIELD DEPUTY - HSH | Gelding | CHESTNUT | 127513 | 03/12/1992 | Stud Book | Eligible |
| SUMMERFIELD GAMBIT | Gelding | BROWN | 41147 | 01/01/1972 | Stud Book | Deceased |
| SUMMERFIELDS CHARDONNAY | Gelding | BAY | 77180 | 19/11/1980 | Stud Book | Not Eligible |
| SUMMERHAZE - HSH | Mare | BROWN/BLACK | 182412 | 11/11/2005 | Stud Book | Deceased |
| SUMMERHAZE CADET | Stallion | CHESTNUT/PIED | SM-144748 | 11/08/1998 | Special Merit - Stud Book | Not Eligible |
| SUMMERJOY APPLE BLOSSOM | Mare | BAY | F22351 | 07/11/1979 | Foal Recorded | Not Eligible |
| SUMMERLAND BALLREYN | Stallion | GREY | 38058 | 17/10/1974 | Stud Book | Not Eligible |
| SUMMERLAND JUNIOR | Gelding | CHESTNUT | 65741 | 23/12/1977 | Stud Book | Deceased |
| SUMMERLAND POPS BOY | Gelding | CHESTNUT | C1-168587 | 15/09/2001 | First Cross | Not Eligible |
| SUMMERLEA ABIGAIL | Mare | CHESTNUT | C1-176284 | 01/08/1993 | First Cross | Not Eligible |
| SUMMERLEA ALL THAT JAZZ | Mare | BAY | C2-171702 | 10/10/2005 | Second Cross | Not Eligible |
| SUMMERLEA BEACHES | Gelding | CHESTNUT/TAFFY | 175072 | 18/12/2007 | Stud Book | Not Eligible |
| SUMMERLEA EISENHOWER | Stallion | BAY | 175056 | 12/10/2006 | Stud Book | Not Eligible |
| SUMMERLEA EVITA | Mare | BAY | C2-188378 | 16/10/2007 | Second Cross | Not Eligible |
| SUMMERLEA GAY MALADY | Mare | GREY | 18239 | 10/09/1972 | Stud Book | Not Eligible |
| SUMMERLEA JULIETTA | Mare | BROWN/BLACK | 171708 | 02/08/2005 | Stud Book | Not Eligible |
| SUMMERLEA MAGARI | Mare | BLACK | 163329 | 15/12/1998 | Stud Book | Not Eligible |
| SUMMERLEA MONTGOMERY | Gelding | BAY | 175057 | 10/11/2006 | Stud Book | Not Eligible |
| SUMMERLEA ROMEO | Gelding | BROWN | 175070 | 29/11/2007 | Stud Book | Not Eligible |
| SUMMERLEA SWEET CAROLINE | Mare | CHESTNUT/TAFFY | C2-188377 | 14/10/2007 | Second Cross | Not Eligible |
| SUMMERLEE BAR TWO | Mare | BLACK | 25777 | 12/12/1968 | Stud Book | Deceased |
| SUMMERLONG | Mare | CHESTNUT | 5992 | 01/09/1964 | Stud Book | Deceased |
| SUMMEROSA | Mare | CHESTNUT | 25561 | 09/09/1970 | Stud Book | Deceased |
| SUMMERS BUTCH | Gelding | CHESTNUT | 24266 | 13/10/1970 | Stud Book | Deceased |
| SUMMERS GIDGET | Mare | BAY | 31210 | 02/11/1972 | Stud Book | Not Eligible |
| SUMMERS GLEAM | Mare | BAY | 19541 | Stud Book | Deceased | |
| SUMMERS GOLDEN GIRL | Mare | CHESTNUT | 26909 | 01/08/1970 | Stud Book | Deceased |
| SUMMERS RANGER | Gelding | BAY | 19540 | Stud Book | Deceased | |
| SUMMERS RUSS | Gelding | BAY | 19539 | Stud Book | Deceased | |
| SUMMERSET COURT | Stallion | BROWN | F33251 | 27/11/1982 | Foal Recorded | Not Eligible |
| SUMMERSET DESTINY | Mare | BROWN | 105508 | 01/10/1983 | Stud Book | Not Eligible |
| SUMMERSET FINE DESIGN | Mare | BROWN | 63089 | 01/01/1973 | Stud Book | Not Eligible |
| SUMMERSET PENNANT MATCH | Gelding | BROWN | 103449 | 17/11/1985 | Stud Book | Not Eligible |
| SUMMERSET SARAMAN | Gelding | BROWN | 103448 | 18/10/1987 | Stud Book | Not Eligible |
| SUMMERTIME BELRINGA | Gelding | BAY | 39622 | 23/11/1971 | Stud Book | Deceased |
| SUMMERTIME BOY | Gelding | CHESTNUT | 25038 | Stud Book | Not Eligible | |
| SUMMERTIME CASCADE | Gelding | DUN/GREY | C2-239084 | 13/12/2013 | Second Cross | Eligible |
| SUMMERTIME CHIC | Mare | PALOMINO | SM-134412 | 07/02/1982 | Special Merit - Stud Book | Deceased |
| SUMMERTIME MONIQUE | Mare | BAY | 26620 | 23/06/1973 | Stud Book | Not Eligible |
| SUMMERTIME SUE | Mare | BAY | 22894 | 23/03/1971 | Stud Book | Deceased |
| SUMMERVALE ANNABELLE | Mare | BROWN | F29381 | 12/10/1980 | Foal Recorded | Not Eligible |
| SUMMERVALE BISCUIT | Mare | BROWN | F29382 | 07/09/1980 | Foal Recorded | Not Eligible |
| SUMMERVALE CHARITY | Mare | BAY/BROWN | F25273 | 17/08/1979 | Foal Recorded | Not Eligible |
| SUMMERVALE COPPER | Stallion | CHESTNUT | F25785 | 18/09/1979 | Foal Recorded | Not Eligible |
| SUMMERVALE CROSSPATCH | Mare | BAY | F29380 | 16/10/1980 | Foal Recorded | Not Eligible |
| SUMMERVALE DAWN | Mare | BROWN | F10858 | 08/11/1977 | Foal Recorded | Not Eligible |
| SUMMERVALE DESERT MISS | Mare | CHESTNUT | 64569 | 17/10/1977 | Stud Book | Deceased |
| SUMMERVALE EARLY BIRD | Mare | CHESTNUT | F25272 | 03/11/1979 | Foal Recorded | Not Eligible |
| SUMMERVALE HOPE | Mare | BROWN | 105443 | 06/11/1978 | Stud Book | Not Eligible |
| SUMMERVALE JILLETTE STAR | Mare | CHESTNUT | 55494 | Stud Book | Deceased | |
| SUMMERVALE MISSION SONG | Mare | BAY | 55495 | 01/08/1964 | Stud Book | Deceased |
| SUMMERVALE SERENE | Mare | BROWN/BLACK | F26282 | 01/11/1980 | Foal Recorded | Not Eligible |
| SUMMERVALE SHADOW | Mare | BROWN | F19163 | 15/08/1978 | Foal Recorded | Not Eligible |
| SUMMERVALE VISION | Mare | BAY | 105444 | 08/10/1984 | Stud Book | Not Eligible |
| SUMMERVALE WREN | Mare | BAY/BROWN | F117105 | 06/11/1990 | Foal Recorded | Not Eligible |
| SUMMERVILLE CHLOE - HSH | Mare | BROWN/BLACK | 68013 | 23/08/1980 | Stud Book | Deceased |
| SUMMERVILLES ALANA | Mare | BAY | 161673 | 16/10/2001 | Stud Book | Eligible |
| SUMMERVILLES ANNIE | Mare | BROWN | 265955 | 29/10/2021 | Stud Book | Not Eligible |
| SUMMERVILLES ASPIRE | Stallion | BAY | 184640 | 03/10/2006 | Stud Book | Deceased |
| SUMMERVILLES BLACK BESS | Mare | BLACK | 21352 | 01/08/1969 | Stud Book | Deceased |
| SUMMERVILLES DIVA | Mare | CHESTNUT | 256327 | 09/10/2015 | Stud Book | Eligible |
| SUMMERVILLES ENCORE | Mare | BROWN | 128453 | 07/11/1995 | Stud Book | Not Eligible |
| SUMMERVILLES ESCORT | Gelding | CHESTNUT | 292 | 10/10/1965 | Stud Book | Deceased |
| SUMMERVILLES FINESSE | Mare | CHESTNUT | 184639 | 27/10/2006 | Stud Book | Not Eligible |
| SUMMERVILLES GEORGY - HSH | Mare | CHESTNUT | 103740 | 19/11/1987 | Stud Book | Deceased |
| SUMMERVILLES GESTURE | Gelding | BROWN | F110353 | 24/09/1989 | Foal Recorded | Deceased |
| SUMMERVILLES HOLLY - HSH | Mare | BAY | 196731 | 16/10/2010 | Stud Book | Not Eligible |
| SUMMERVILLES INTRIGUE | Gelding | BROWN | 220044 | 11/11/1986 | Stud Book | Not Eligible |
| SUMMERVILLES LANA | Mare | BROWN | 42185 | 28/09/1974 | Stud Book | Deceased |