Susan Mary Alsop was an American writer and socialite active in Washington, D.C., political circles. She was the wife of columnist Joseph Alsop and a descendant of founding father John Jay. Her Georgetown home hosted dignitaries and publishers during the 1960s and 1970s ranging from John F. Kennedy, Phil Graham, Katharine Graham, and Isaiah Berlin, earning her the nickname "the grand dame of Washington society."

Joseph Wright Alsop V was an American journalist and syndicated newspaper columnist from the 1930s through the 1970s. He was an influential journalist and top insider in Washington from 1945 to the late 1960s, often in conjunction with his brother Stewart Alsop.