His niece was
Antonia Maury, the American astronomer, while his brothers included the chemist and surgeon
John Christopher Draper and the doctor and amateur astronomer
Henry Draper. His aunt was
Dorothy Catherine Draper, the subject of the oldest
daguerreotype taken in America. Daniel Draper died of heart disease Their daughter Harriett Maury Draper (1890-1932) was killed in a motor accident. In her will she left her estate to her caretaker to look after her pets. Another daughter was Dorothy Catherine Draper (1888-1972), named after her great-aunt, and who married Berthold Hintz Nye (1886-1943). His only son, John William, named for his grandfather (1893-1976), who married Lulu Hazel Clay (1894-1990) had 3 sons. He achieved his Ph.D. in 1920 from Harvard and was awarded a Guggenheim Fellowship 1927-28 in London. He was Professor Emeritus of English at West Virginia University as well as a prolific author of Shakespeare, Milton and Funeral Elegies. The archive of Daniel Draper is among the John William Draper Family Papers held by the
Library of Congress. ==References==