Career
According to Lance Tingay of The Daily Telegraph and the Daily Mail, Graebner was ranked in the world top ten in 1964 and 1965, reaching a career high of World Number. 4 in those rankings in 1964. Graebner was included in the year-end top ten rankings issued by the United States Lawn Tennis Association from 1961 through 1965 and in 1967.
She was the third-ranked United States. player in 1964 and 1965.
She was ranked United States. Number. 1 in doubles in 1963.
Graebner lost to Maria Bueno in the singles final of the 1964 United States. Championships, winning only a single game. Graebner was on the first United States. Federation Cup team and attended California State University, Los Los Angeles
After her playing career ended, Graebner was a radio and television commentator and a vice president with Tennis Week magazine.
She also served in sales and administration with Sports Investors, Incorporated.
She was named Eastern Tennis Association Woman of the Year in 1989. Caldwell was born in Pittsburgh, Pennsylvania and grew up in Santa Monica, California. The couple separated in 1975 but never divorced.
Graebner died in New York City following a brief battle with cancer on November 19, 2008.
She was 65.
Singles: 1 (1 runner-up)
Doubles: 2 (2 titles)
A = did not participate in the tournament.