Wales. Cooper Hewitt and his first wife had no children and divorced in December 1918. While married to Work, Hewitt had an extramarital relationship with Marion (aka Maryon) Jeanne Andrews that resulted in the birth of Ann Cooper Hewitt in 1914. Hewitt later married Andrews in 1918, right after his divorce to Work, and formally adopted Ann. Prior to Hewitt, Andrews was married in 1902 to Dr. Peder Sather Bruguiere (brother of American photographer Francis Bruguière, brother-in-law of heiress Margaret Post Van Alen and grandson of banker Peder Sather) and in 1907 to wealthy New York broker Alexander Turner Stewart Denning. After Hewitt, Andrews married in 1922 to Baron Robert Frederic Emile Regis D'Erlanger and in 1926 to George William Childs McCarter (grandson of American author Hannah Mary Bouvier Peterson, great-grandson of Judge John Bouvier and nephew-in-law of American publisher George William Childs). Ann Cooper Hewitt Peter Cooper Hewitt died in 1921. His will left two-thirds of his estate to Ann and one-third to her mother Marion; but Ann's portion would revert to her mother if Ann (Gay Bradstreet) died childless. In 1935, just before Ann's 21st birthday when she would have attained legal majority, she was hospitalized for appendicitis. Ann's mother, by that time using the name Maryon Andrews Bruguiere Denning Hewitt d’Erlanger McCarter, told the surgeons that Ann was "feebleminded" and paid them to sterilize her while performing her appendectomy. Ann retaliated by suing her mother in San Francisco court and telling the press about Maryon's gambling and alcohol addictions. The mother-daughter dispute riveted the public; and the unconventional use of sterilization (it occurred in private practice, not a public asylum) forced a public debate of eugenics. References Further reading References Cooper Hewitt's hydrofoil work. References Cooper Hewitt's work with hydrofoils. External links 1861 births 1921 deaths American electrical engineers American inventors Burials at Green-Wood Cemetery Stevens Institute of Technology alumni Columbia School of Engineering and Applied Science alumni Peter Cooper Naval Consulting Board