Who is on the Dime?

By GovMint :

The U.S. dime features the profile of President Franklin D. Roosevelt on its obverse, a design that has been in place since 1946. Roosevelt was chosen to be featured on the dime to honor his significant contributions, particularly his role in founding the March of Dimes, an organization dedicated to combating polio, a disease from which he suffered. The dime's reverse design, created by John R. Sinnock, features a torch, olive branch, and oak branch on the reverse, while Roosevelt's profile appears on the obverse.

Sources Used:

https://www.usmint.gov/learn/coins-and-medals/circulating-coins/dime