Full Idea
The epistemic account of vagueness is particularly attractive where persons are concerned.
Gist of Idea
Epistemic vagueness seems right in the case of persons
Source
Katherine Hawley (How Things Persist [2001], 4.14)
Book Reference
Hawley,Katherine: 'How Things Persist' [OUP 2004], p.138
A Reaction
You'll have to see her text for details. Interesting that there might be different views of what vagueness is for different cases. Or putting it another way, absolutely everything (said, thought, existing or done) might be vague in some way!