One possibility is that the person who created the document put these names in as a placeholder, intending to come back and fix them later with the real intern names.
This would happen a lot when I worked in advertising… When mocking-up a design before the content was available, you’d use dummy type. Lots of newbies think it’s funny to fill that dummy type with hilarious fake/offensive content… But it’s not hilarious when the fake stuff gets printed and the client see it… Thus the rule was NEVER use potentially offensive or funny names for ANYTHING.