Six similarities between Theodore Roosevelt (1858-1919) and Franklin Delano Roosevelt (1882-1945) were:
-both ran for vice president (Theodore Roosevelt did so in the 1900 elections, while Franklin Roosevelt did it in the 1920 elections)
-both were assistants to the Secretary of the Navy (Theodore Roosevelt reached the office in 1897, while FDR did it in 1913)
-both attended Harvard
-both became president (Theodore Roosevelt was President from 1901 to 1909, while Franklin Roosevelt was President from 1933 to 1945)
-both were private tutors
-both had physical handicaps