Edith Rockefeller McCormick (August 31, 1872 – August 25, 1932) was an American socialite and opera patron.

Biography
She was born on August 31, 1872, the fourth daughter of John D. Rockefeller and his wife, Laura Spelman. Her younger brother was John D. Rockefeller, Jr. and her sister was Alta Rockefeller.
McCormick and her father had an often stormy relationship, where her extravagance would often conflict with his frugality.
She married Harold Fowler McCormick, a son of Chicago's mechanicalreaper inventor Cyrus McCormick, in 1895. The married couple spent their first two years living in Council Bluffs, Iowa. They later moved to Chicago. Her country retreat, located directly on Lake Michigan in Lake Forest, Illinois, named Villa Turicum, was ostentatious, and had extensive gardens.^[1]
A famous story about McCormick involves an evening in 1901 during a party. News arrived that McCormick's son, John Rockefeller McCormick, had died of scarlet fever. It was rumored that when this was whispered to her at the dinner table, she proceeded to merely nod her head and allowed the party to continue without incident. A biographer of her father, however, makes it clear that this could not have been true. At the time of her son's death, Edith was with him at the family estate, Kykuit, at Pocantico Hills, New York. A year later, she and her husband established the John McCormick Institution of Infectious Diseases in Chicago, a source of funding for theresearchers who later isolated the bacterium responsible for the disease.^[2]
In 1913 she travelled to Zurich to be treated for depression by Carl Gustav Jung and contributed generously to the Zürich Psychological Society. In 1919 McCormick donated land she had received from her father as a wedding gift to the Forest Preserve of Cook County, to be developed as a zoological garden, later to become Chicago's Brookfield Zoo. She returned to America in 1921 after an 8 year stay.
She and Harold Fowler McCormick were divorced in December, 1921. A year later, Harold was given custody of 17 year old Mathilde, so that she could marry Max Oser, a 47-year-old Swiss riding instructor. Mathilde and Max were married in London in April, 1923. Meanwhile, Harold married Ganna Walska, a famous Polish opera singer in August, 1922. Within days of Harold's remarriage, Edith announced plans to marry Edward Krenn, a 28 year old Austrian archietect. The plan fell through for undisclosed reasons in December, 1922. In 1927, she was mentioned in a newspaper article about Chicago's wealthy unmarried, divorced, and widowed wealthy women. The article noted that she was "glad to be rid of the gay Harold McCormick, but hasn't succeeded in convincing her friends she will never marry again." Over the next few years, Edith and Harold frequently found themselves in court in lawsuits over the divorce agreement.
In February, 1923 she received some minor press for claiming to be the reincarnation of the wife of King Tutankhamen, whose tomb had just been explored and was a popular topic. She was quoted as saying, "I married King Tutankhamen when I was only sixteen years old. I was his first wife. Only the other day, while glancing through an illustrated paper, I saw a picture of a chair removed from the King's chamber. Like a flash I recognized that chair. I had sat in it many times." She followed up in Time magazine by stating "My interest in reincarnation is of many years' standing." She was also said to be interested in astrology and to celebrate Christmas on December 15.
In 1925, she and other wealthy Chicago women including Miss Helen M. Bennett, Mrs. John V. Farwell, Mrs. Silas Strawn, Mrs. John Alden Carpenter, Mrs. B.F. Langworthy, Mrs. Florence Fifer Bohrer, and Mrs. Medill McCormick sponsored an international exposition to celebrate the progress and achievements of American women – The Women's World's Fair, which was held at the American Exposition Palace on Lake Michigan in April 1925, and was held again each year in Chicago in April or May from 1926 to 1928. A local paper noted, of the first fair, that "One feature of the exhibit will be a collection of newspaper and magazine clippings, from various countries during the last 200 years emphasizing the storm of protest which greeted every suggestion for a freer social status for women." Newspaper articles mention organizing troubles that caused it to be cancelled in 1929. It was not held thereafter.

Death
In 1930 Edith had a growth removed from her breast and died of cancer two years later. She and two of her children, John and Editha, are buried in Graceland Cemetery in Chicago.

Children

• John Rockefeller McCormick (1896–1901) was the eldest son of Harold Fowler McCormick and his wife Edith Rockefeller McCormick. McCormick was a grandson of Cyrus McCormick, inventor of the mechanical reaper, and Standard Oil tycoon John D. Rockefeller. He died of scarlet fever.
• Editha McCormick (1897–1898)
• Harold Fowler McCormick, Jr. (1898–1973) who married Anna Urquhart Brown-Potter. She was the daughter ofCora Urquhart Brown-Potter, and was previously married to James A. Stillman
• Muriel McCormick Hubbard (1903–1959)
• Mathilde McCormick Oser (1906–1947)