Francis Delafield (August 3, 1841 – July 17, 1915) was an American physician, born in New York City. His father, Dr. Edward Delafield, was the son of the prominent John Delafield who had emigrated to America from London, England in 1783 carrying the provisional peace treaty between England and The United States. While his father Edward graduated Yale in 1812, Francis graduated at Yale (1860) and at the College of Physicians and Surgeons, Columbia University (1863), and after further study abroad practiced medicine in New York. Francis was appointed to the staff of Bellevue Hospital (1874), and to the chair of pathology and practice of medicine in the College of Physicians and Surgeons (1875–82). Francis Delafield resided for many years at 5 West 50th Street in Manhattan, New York. In 1886, he became the first president of the Association of American Physicians. Early life Francis Delafield was born in New York City, the son of Edward Delafield by his second marriage to Julia Floyd. Julia Floyd was the granddaughter of William Floyd, a signer of the Declaration of Independence. She was born, raised and married on the Floyd estate in Mastic, Long Island. Francis Delafield's mother Julia Floyd married Dr Edward Delafield in 1839 on the Floyd family's property in Long Island (currently the William Floyd House museum). She kept an extensive journal of her life during the Civil war until her death. She was one of a few women invited to attend Lincoln's 2nd inauguration. Julia Floyd was also the first woman in New York to use ether to ease pain during childbirth. She endured hardship. Julia Floyd Delafield watched all of her husband's six children die of tuberculosis (his first wife had died of it also). Some of her five biological children also suffered from tuberculosis and died. And even her son [Francis Delafield] became gravely sick and nearly died. Francis' brother Augustus Floyd Delafield travelled extensively around Scotland and brought back a set of golf clubs in 1880s. The sport became popular in Darien and Augustus founded the Wee Burn Country Club in 1893. From London, Francis' grandfather (John Delafied) emigrated to New York City. The ship upon which he took passage bore letters of marque, and captured a French vessel. John Delafield volunteered in the action, and shared the prize money to the extent of £100. He landed in New York City on April 5, 1783,