Full Idea
Being able to think of an individual does not require being able to identify that individual by means of a uniquely characterizing description.
Gist of Idea
We can think of an individual without have a uniquely characterizing description
Source
Kent Bach (What Does It Take to Refer? [2006], 22.1 s1)
Book Reference
'Oxford Handbook of Philosophy of Language', ed/tr. Lepore,E/Smith,B [OUP 2008], p.522
A Reaction
There is a bit of an equivocation over 'recognise' here. His example is 'the first child born in the 4th century'. We can't visually recognise such people, but the description does fix them, and a records office might give us 'recognition'.