In 1919, Dewis's older daughter, Yvonne Elisabeth Marie (23 September 1897 in Toulouse, France - 19 February 1966 in St. Petersburg, Florida), was a student at the University of Bordeaux where she met and, after a whirlwind courtship, married Bradbury Robinson (1884–1949), a graduate student from America. He was a widowed army officer (a combat veteran of the Great War) and a medical doctor who, after being discharged in the United States, had returned to France to continue his studies. The couple would travel around Western Europe as Dr. Robinson oversaw immigrant screening for the U.S. Public Health Service. In 1906, Robinson had gained fame in the United States for having thrown the first forward pass in an American football game. The couple moved to the United States in 1926. They had seven children together, and Yvonne also gained a stepson from her husband's first marriage (his first wife having died in 1914).