Reginald Fessenden
Reginald Fessenden was born October 6, 1866, in East-Bolton, Quebec, the eldest of the Reverend Elisha Joseph Fessenden and Clementina Trenholme's four children. Elisha Fessenden was a Church of England in Canada minister, and the family moved to a number of postings throughout the province of Ontario.
Benjamin Feingold
Benjamin F. Feingold (born June 15, 1899 in Pittsburgh, Pennsylvania, USA; died, March 23, 1982) was a pediatric allergist from California, who proposed in 1973 that salicylates, artificial colors, and artificial flavors cause hyperactivity in children. Hyperactivity is now classified as Attention deficit hyperactivity disorder (ADHD).