The Roosevelt streets were named after US President Theodore Roosevelt (1858-1919). He was Vice-President for 6 months under William McKinley and assumed the presidency in September 1901 after the assassination of McKinley. He then served a second term from 1905 to 1909. He was awarded the Nobel Peace Prize in 1906 for his part in ending the Russo-Japanese War.
The first street to be so named was Roosevelt Street, whilst Roosevelt Square was named many decades later.