How are Biographies and autobiographies arranged on library shelves?

[The first answer was deleted as it was completely irrelevant to what the question was asking.]

Biographies are arranged to the biographical subject's last name. Remember, we are not sorting it according to the author's last name. The subject is the person who the book is about.

For example, these would be the order of biographies. I could use actual books, but I want you to get the idea:

Adams, John

Adams, John Quincy

Franklin, Benjamin

Gandhi, Mohandas K.

Herzl, Theodore

Hitler, Adolf

Jackson, Andrew

Jefferson, Thomas

King, Jr. Martin Luther

Luther, Martin

Roosevelt, Franklin Delano

Roosevelt, Theodore

Shakespeare, William

Washington, George

Do you get the idea? I hope you did. If you need any further help, please ask a follow-up question. Thank you.