She married Charles Harris Wesley, an authority on black history and former professor and dean at Howard, in 1979.

In 1986, Kaplan married Susan Estrich, a lawyer, professor, author, political operative, feminist advocate, and future political commentator for Fox News.

In April 1945 she married Arne Korsmo, architect and professor at the Norwegian Institute of Technology.

On June 21, 1906 she married Lionel Simeon Marks, a British engineer and professor at Harvard University.

She held this position only for a year, before marrying Barker Fairley, a fellow Yorkshireman and professor of modern languages.

She moved to Vermont in 1987, and the next year she married Mr. Perrin, a writer and professor of environmental studies at Dartmouth College.

In 1960 she married Claude Veil, a psychiatrist and professor, and divorced from him in 1969.

In 1910, she married Henry A. Callis, a prominent physician and professor at Howard University, but this marriage ended in divorce.

In 2003 he married Suzanne Soled, an educational psychologist and professor at Northern Kentucky University.

In 1954, she married Raoul Van Caenegem, historian and professor at the University of Ghent.