Analysis of information sources in references of the Wikipedia article "Big Four (debutantes)" in English language version.
Margaret (Peg) Cary was a close friend of Ginevra's. With Courtney Letts and Edith Cummings, they made up the 'Big Four' debutantes of the time, girls so legendary for their beauty that they were known by that designation for the rest of their lives. In the late 1970s, I met a fellow from Lake Forest at the Yale Club bar in New York City, and asked him if possibly he had heard of 'the Big Four,' who would have been at least a decade his senior. He had indeed—everyone in Lake Forest had— and he could tell me about their subsequent marriages and divorces as well.
Society has taken great interest in 'tennis week' at the Onwentsia club.... Miss Ginevra King... play excellent games."Miss Ginevra King, Who Weds Sept. 4, Lake Geneva Guest". Chicago Tribune. Chicago, Illinois. August 20, 1918. p. 15. Retrieved January 1, 2023 – via Newspapers.com.
Miss Ginevra King, whose marriage to Ensign William H. Mitchell will take place on Sept. 4, is spending a few days with Mr. and Mrs. John J. Mitchell at Lake Geneva.... Miss King... spent the week end with Miss Edith Cummings in Lake Forest.Rothman, Joshua (August 5, 2012). "Fitzgerald's Muse". The Boston Globe (Sunday ed.). Boston, Massachusetts. p. Page K12. Retrieved January 1, 2023 – via Newspapers.com.