Ottmar Mergenthaler was born on 11 May 1854. He was American national and known as Inventor.
Otto Struve was born on 12 August 1897. He was American national and known as Astronomer.
Otto Piene was born on 18 April 1928. He was American national and known as Artist.
Otto Messmer was born on 16 August 1892. He was American national and known as Animator.
Otis Chandler was born on 23 November 1927. He was American national and known as Publisher.
Otis Boykin was born on 29 August 1920. He was American national and known as American inventor.
Otto Loewi was born on 03 June 1873. He was American national and known as Pharmacologist.
Otto F. Kernberg was born on 10 September 1928. He was American national and known as Psychiatrist, Psychanalyst, University teacher,.
Othniel Charles Marsh was born on 29 October 1831. He was American national and known as Paleontologist.