Katherine Winthrop McKean

Katherine or Kathrine "Kay" Winthrop McKean (July 17, 1914 – February 12, 1997) was a top-ranked American tennis player, who, in 1936 at Wimbledon, played doubles with Alice Marble. She was active from 1931 to 1957. Early life and family Kay Winthrop was born in Ipswich, Massachusetts on July 17, 1914. She was one of six children born to Frederic Bayard Winthrop (1868–1932) and Sarah Barroll Thayer (1885–1938). Her siblings included Robert Winthrop; Dorothy Winthrop; Frederic Bayard Winthrop, Jr; John Winthrop; Nathaniel Thayer Winthrop. Through her father, she was a direct descendant of John Winthrop: the descendant line is Gov. John Winthrop, Gov. John Winthrop II, Magistrate Wait Still Winthrop, John F. R. S Winthrop, John Still Winthrop, Francis Bayard Winthrop, Thomas Charles Winthrop, Robert Winthrop, Frederic Bayard Winthrop. Her maternal grandfather was banker and railroad executive, Nathaniel Thayer III and through him, she was descended from the Van Rensselaer, Schuyler and Thayer families. In 1932, Winthrop attended Foxcroft School.