Kenneth V. Thimann

Kenneth Vivian Thimann was an English-American plant physiologist and microbiologist known for his studies of plant hormones, which were widely influential in agriculture and horticulture. He isolated and determined the structure of auxin, the first known plant hormone. He spent most of his early career (1935–1965) at Harvard University, and his later career at the University of California, Santa Cruz. He is credited with identifying indole-3-acetic acid as an auxin.

5 August 1904

Born on the same birth day (5 August): Airto Moreira • Angry Anderson • Barbara Flynn • Carl Harries • Erik Guay • George Tooker • Gertrude Rush • Guillaume Du Fay • Herb Brooks • Ilya Repin • Jesse Williams (actor) • Karl Johan Åström • Niels Henrik Abel • Roy Benavidez • Tera de Marez Oyens • Ulla Salzgeber

Born in the same month (August 1904): Alexei Nikolaevich, Tsarevich of Russia • Charles "Buddy" Rogers • Christopher Isherwood • Count Basie • Helen Kane • Henry Iba • Idel Jakobson • Secondo Campini