About Mary T. Meagher
Mary Terstegge Meagher Plant is an American former competition swimmer, who swam for U.California Berkeley, a three-time 1984 Olympic champion, and a world record-holder. In 1981 she bettered her own existing world records in the 100-meter butterfly (57.93) and 200-meter butterfly (2:05.96). These times would stand as the world records for 18 and 19 years, respectively, and are considered by many swimming historians to be among the all-time greatest sports performances by a competitive swimmer. Mary first began swimming during the summers at Louisville's River Road Country Club, where her father, a golf enthusiast, had been a founding member. At the 1979 Pan American Games in San Juan, Puerto Rico, she set her first world record—at the age of 14—in the 200-meter butterfly.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.