When doing APA format 6th edition, do you capitalize proper nouns in a title?

For example, there is a book called Profiles of the President: Woodrow Wilson. When writing APA format, it says that you only capitalize the first word in the title. So do you capitalize the proper noun. In this example, it is Woodrow Wilson.When doing APA format 6th edition, do you capitalize proper nouns in a title?
you always capitalize proper nouns