Octave Gengou died in 1957.
Octave Gengou was born in 1875.
Pertussis was discovered by Jules Bordet and Octave Gengou. The vaccine was created by Dr. Louis Sauer.
Jules Bordet (1870-1960) along with Octave Gengou discovered Bordetella pertussis in pure culture in 1906 as the actual cause of whooping cough.
The pathogen that causes whooping cough, Bordatella pertussis, was first isolated in 1906 by Bordet and Gengou. I don't know who was the first poor soul to have the cough drive them crazy, but I suspect that's not what you're asking.
Octave Berthier died in 1984.
Octave Merlier died in 1996.
Octave Pirmez died in 1883.
Octave Mannoni died in 1989.
Octave Dua died in 1952.
Octave Chanute died in 1910.
Octave Uzanne died in 1931.
Octave Crouzon died in 1938.