| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| MAY CASPER | Mare | BROWN | 9556 | Stud Book | Deceased | |
| MAY CHRISTIE | Mare | BROWN/TAFFY | F27978 | 28/10/1980 | Foal Recorded | Not Eligible |
| MAY CINDY | Mare | CHESTNUT | 9553 | Stud Book | Deceased | |
| MAY CINNAMON | Mare | CHESTNUT | 48995 | 07/12/1974 | Stud Book | Not Eligible |
| MAY CLARE | Mare | BLACK | F22859 | 26/09/1979 | Foal Recorded | Not Eligible |
| MAY CLARISSA ROBINSON | Mare | DUN | 48993 | Stud Book | Not Eligible | |
| MAY CONDORES REVENGE | Gelding | CHESTNUT | 66870 | 15/10/1976 | Stud Book | Not Eligible |
| MAY DAWN | Mare | BROWN | 9552 | Stud Book | Deceased | |
| MAY DOWNS DOREEN | Mare | CHESTNUT | 32755 | Stud Book | Deceased | |
| MAY DOWNS RINGO | Stallion | GREY | F42533 | 10/11/1986 | Foal Recorded | Deceased |
| MAY DRACULAR | Gelding | CHESTNUT | F22864 | 25/09/1979 | Foal Recorded | Not Eligible |
| MAY EVE | Mare | CHESTNUT | F22860 | 19/10/1979 | Foal Recorded | Not Eligible |
| MAY GEMINI | Mare | BAY | 37673 | 27/11/1972 | Stud Book | Not Eligible |
| MAY JAMIE | Stallion | CHESTNUT | F34265 | 09/09/1981 | Foal Recorded | Not Eligible |
| MAY JAX | Stallion | CHESTNUT | F22858 | 09/10/1979 | Foal Recorded | Not Eligible |
| MAY JOSIE | Mare | BROWN | 8080 | Stud Book | Deceased | |
| MAY JUNE | Mare | CHESTNUT | 9557 | Stud Book | Deceased | |
| MAY KIMBA | Mare | BLACK | 54908 | 09/10/1973 | Stud Book | Not Eligible |
| MAY KIMBERLY | Mare | CHESTNUT | 9563 | Stud Book | Deceased | |
| MAY KISMET | Mare | CHESTNUT | 24304 | 26/10/1971 | Stud Book | Deceased |
| MAY LODGE TEE JAY PLAUDIT | Gelding | CHESTNUT | 75402 | 30/10/1984 | Stud Book | Not Eligible |
| MAY MABLE | Mare | CHESTNUT | F22863 | 31/10/1979 | Foal Recorded | Not Eligible |
| MAY MAGICIAN | Gelding | BLACK | F27975 | 06/11/1980 | Foal Recorded | Not Eligible |
| MAY MALLACCA | Mare | BROWN | 9555 | Stud Book | Deceased | |
| MAY MALLET | Gelding | CHESTNUT | F18136 | 14/11/1978 | Foal Recorded | Not Eligible |
| MAY MALLEY | Gelding | CHESTNUT | 63341 | 23/11/1977 | Stud Book | Not Eligible |
| MAY MARVEL | Mare | BROWN | 24687 | 01/08/1965 | Stud Book | Deceased |
| MAY MAX | Stallion | CHESTNUT | F27977 | 17/03/1981 | Foal Recorded | Not Eligible |
| MAY MELODY | Mare | CHESTNUT | 9558 | Stud Book | Deceased | |
| MAY MINTY | Mare | GREY | 9561 | Stud Book | Deceased | |
| MAY MIRAGE | Stallion | CHESTNUT | F33068 | 09/09/1981 | Foal Recorded | Not Eligible |
| MAY MIST | Mare | GREY | 1171 | Stud Book | Deceased | |
| MAY MURMER | Mare | BROWN | F11756 | 02/10/1977 | Foal Recorded | Not Eligible |
| MAY OLIVIA | Mare | CHESTNUT | F27974 | 23/10/1980 | Foal Recorded | Not Eligible |
| MAY OMO | Mare | GREY | F27976 | 29/10/1980 | Foal Recorded | Not Eligible |
| MAY PANIC | Stallion | BAY | 40642 | 26/10/1974 | Stud Book | Not Eligible |
| MAY PETUNIA | Mare | BLACK | 67926 | 10/12/1979 | Stud Book | Not Eligible |
| MAY SEED | Mare | BROWN | 48681 | 15/03/1976 | Stud Book | Not Eligible |
| MAY SHEBA | Mare | BAY | 9562 | Stud Book | Deceased | |
| MAY TAURUS | Gelding | CHESTNUT | F11759 | 16/10/1977 | Foal Recorded | Not Eligible |
| MAY THIMBLE | Mare | BROWN | F18135 | 27/10/1978 | Foal Recorded | Not Eligible |
| MAY TISUMINGO | Mare | GREY | 9560 | Stud Book | Deceased | |
| MAY TOPAZ | Mare | BAY | 9559 | Stud Book | Deceased | |
| MAY TUMBLE | Gelding | BROWN | F22862 | 12/10/1979 | Foal Recorded | Not Eligible |
| MAY VAMPIRE | Mare | CHESTNUT | 24303 | 18/01/1972 | Stud Book | Deceased |
| MAY VENUS | Mare | BAY | F33067 | 03/02/1982 | Foal Recorded | Not Eligible |
| MAY VIEW PENNY | Mare | CHESTNUT | 40019 | 21/08/1972 | Stud Book | Not Eligible |
| MAY VIXON | Mare | CHESTNUT | F33065 | 26/08/1981 | Foal Recorded | Deceased |
| MAY WHISPER | Mare | CHESTNUT | F18133 | 13/10/1978 | Foal Recorded | Not Eligible |
| MAY WOMBLE | Gelding | GREY | F11757 | 28/10/1977 | Foal Recorded | Not Eligible |
| MAY ZEN | Stallion | BAY | F33066 | 28/01/1982 | Foal Recorded | Not Eligible |
| MAY ZOMBIE | Mare | BAY | 8150 | Stud Book | Deceased | |
| MAY ZULU | Stallion | CHESTNUT | 63340 | 17/11/1978 | Stud Book | Not Eligible |
| MAYA | Gelding | BAY | 57564 | Stud Book | Not Eligible | |
| MAYAMAH - HSH | Mare | BROWN | 65285 | 01/09/1979 | Stud Book | Deceased |
| MAYBAH ALLURE - HSH | Mare | CHESTNUT | 160985 | 19/12/2002 | Stud Book | Not Eligible |
| MAYBAH ANTAEUS - HSH | Gelding | BAY | 169734 | 10/10/2004 | Stud Book | Eligible |
| MAYBAH BIARRITZ - HSH | Stallion | BROWN/BUCKSKIN | 257744 | 05/11/2020 | Stud Book | Not Eligible |
| MAYBAH CHANCE - HSH | Gelding | BAY/BROWN | C1-161070 | 19/01/2002 | First Cross | Eligible |
| MAYBAH CRISTALLE | Mare | PALOMINO | C1-188232 | 24/09/2006 | First Cross | Eligible |
| MAYBAH GABRIELLE - HSH | Mare | DUN | 135383 | 24/09/1996 | Stud Book | Eligible |
| MAYBAH MADEMOISELLE - HSH | Mare | DUN | 192009 | 04/10/2009 | Stud Book | Eligible |
| MAYBAH MONSIEUR - HSH | Gelding | DUN | 250455 | 30/10/2018 | Stud Book | Eligible |
| MAYBAH NUMBER FIVE - HSH | Gelding | BROWN | 195879 | 25/09/2010 | Stud Book | Not Eligible |
| MAYBAH RIVIERA - IM HSH | Mare | BLACK | 258795 | 12/10/2021 | Stud Book | Eligible |
| MAYBE BENNY - HSH | Gelding | BAY | 184038 | 28/10/2006 | Stud Book | Eligible |
| MAYBE BONNIE LEE - HSH | Mare | BAY | 185921 | 17/12/2007 | Stud Book | Not Eligible |
| MAYBE BRIDGET | Mare | GREY | C1-136649 | 29/12/1996 | First Cross | Not Eligible |
| MAYBE GERT - HSH | Mare | BROWN | 264759 | 18/01/2017 | Stud Book | Eligible |
| MAYBE GUNDY | Gelding | GREY | 126656 | 19/12/1994 | Stud Book | Not Eligible |
| MAYBE HARLEQUIN - HSH | Gelding | GREY | 131829 | 04/11/1996 | Stud Book | Not Eligible |
| MAYBE JESSIE - HSH | Mare | BAY/BLACK | 106056 | 01/11/1987 | Stud Book | Deceased |
| MAYBE JIMMY - HSH | Gelding | BROWN | 162856 | 17/10/2001 | Stud Book | Not Eligible |
| MAYBE KNIGHT - HSH | Gelding | BLACK | 124781 | 27/09/1994 | Stud Book | Eligible |
| MAYBE LADY - HSH | Mare | BLACK | 68605 | 06/11/1979 | Stud Book | Deceased |
| MAYBE LANA - HSH | Mare | BAY | 111864 | 12/09/1988 | Stud Book | Deceased |
| MAYBE MACCA - HSH | Gelding | BAY | 227980 | 27/10/2012 | Stud Book | Deceased |
| MAYBE MICK | Gelding | BROWN | 38021 | 01/08/1974 | Stud Book | Not Eligible |
| MAYBE MISS POPPET | Mare | BAY | 132665 | 12/12/1995 | Stud Book | Not Eligible |
| MAYBE MISSY - HSH | Mare | BAY | 190894 | 03/08/2009 | Stud Book | Eligible |
| MAYBE MONTY - HSH | Gelding | BAY | 117394 | 24/09/1990 | Stud Book | Not Eligible |
| MAYBE NELLIE | Mare | GREY | 73967 | 01/08/1982 | Stud Book | Deceased |
| MAYBE OLLY - HSH | Mare | BAY/GREY | 227992 | 26/10/2011 | Stud Book | Eligible |
| MAYBE SAY SO - HSH | Gelding | BAY | 153775 | 01/10/1999 | Stud Book | Not Eligible |
| MAYBE SHELBY | Mare | BAY | C2-264758 | 28/10/2017 | Second Cross | Eligible |
| MAYBE SHIMMER - HSH | Mare | CHESTNUT | 25954 | 04/11/1973 | Stud Book | Not Eligible |
| MAYBE SHINE | Gelding | BAY | 49946 | 01/08/1976 | Stud Book | Deceased |
| MAYBE SHIRALEE - HSH | Mare | GREY | 132666 | 19/11/1995 | Stud Book | Deceased |
| MAYBE SUMMER | Mare | BAY/BROWN | 77579 | 15/09/1982 | Stud Book | Deceased |
| MAYBE TASSIE - HSH | Mare | BROWN | 136648 | 12/11/2003 | Stud Book | Eligible |
| MAYBE TOMMY BOB - HSH | Gelding | BAY | 261247 | 08/11/2021 | Stud Book | Eligible |
| MAYBE TRIGGER - HSH | Gelding | BAY | 139085 | 11/12/1997 | Stud Book | Not Eligible |
| MAYBE WARRIOR - HSH | Stallion | CHESTNUT | 116300 | 12/09/1989 | Stud Book | Not Eligible |
| MAYBE WIZARD - HSH | Gelding | CHESTNUT | 118908 | 01/12/1991 | Stud Book | Not Eligible |
| MAYBE ZOE - HSH | Mare | BAY | 138513 | 21/09/1999 | Stud Book | Eligible |
| MAYBELINE | Mare | BROWN | 40907 | 09/08/1975 | Stud Book | Not Eligible |
| MAYBROOK FIREFLY | Mare | BROWN | 268773 | 01/01/2020 | Stud Book | Eligible |
| MAYBROOK SNAPDRAGON | Gelding | BAY | C1-262213 | 15/01/2019 | First Cross | Eligible |
| MAYBURY ANGIE | Mare | PALOMINO | 29499 | 01/08/1962 | Stud Book | Deceased |
| MAYDAN BARNES BAR | Stallion | CHESTNUT | F34188 | 28/10/1982 | Foal Recorded | Not Eligible |