Can prosopagnostic (face-blind) people draw other people recognizably? Is it possible for people with face blindness / prosopagnosia to draw other people (whose faces they cannot recognize) such that non-face-blind people can recognize the people being drawn ?
According to Bruce &amp; Young model (1986), face recognition is composed of 2 main sub-processes, one more "perceptive" (called structural encoding) and the other one more "associative" (fru, pin, name generation). Bruce &amp; Young model

A person with "apperceptive prosopagnosia" cannot create a precise percept, that is a mental representation of who he's looking at. He's unlikely to be able to draw other people face.

A person with "associative prosopagnosia" can create a percept of who he sees, but he cannot understand who the person is, deficit is semantic not perceptive. In this case, he is able to draw other people face, even though he cannot recognize it.

This subdivision can be found also in object recognition process and its related impairments: apperceptive agnosia and associative agnosia.

It's important to note that all this stuff is heavily theoretical. Reality is much more complex and sometimes unclear.

Bruce, V., &amp; Young, A. (1986). Understanding face recognition. British journal of psychology, 77(3), 305-327.