SOUND OF SUCCESS f. 1969
SUCCESSOR (USA) - BELLE MUSIQUE (USA), by TUDOR MINSTREL (GB)

SOUND TRACK (GB) c. 1957
- , by

SOUNDS OF A CHAMP (USA) f. 1992
BET TWICE (USA) - SYRIAN SILENCE (USA), by DAMASCUS (USA)

SOURCE SUCREE (FR) f. 1940
ADMIRAL DRAKE (FR) - LAVENDULA (---), by

SOURDINE (BRZ) f. 1991
BARONIUS (BRZ) - HENALORE (BRZ) , by KARABAS (GB)

SOURYVA (BRZ) f. 1930
GAINSBOROUGH (GB) - L'ESPERANCE (---), by

SOUTH ALARM f. 1991
SOUTHERN HALO (USA) - ALARMINGLY (ARG), by MOUNT ATHOS (GB)

SOUTH AMERICA (BRZ) f. 2001
STUKA (USA) - SOUTH ALARM (ARG), by SOUTHERN HALO (USA)

SOUTH OCEAN (CAN) f. 1967
NEW PROVIDENCE (CAN) - SHINING SUN (USA), by CHOP CHOP (USA)

SOUTH SEA DANCER (USA) f. 1981
NORTHERN DANCER (CAN) - SOUTH OCEAN (CAN), by NEW PROVIDENCE (CAN)