Oliver Knill
Oliver Knill, Photo shot by Ben Knill, Cape Ann, MA, September 2005. A photo by Ruth Knill shows the photographer Ben and a shot of Oliver which obviously did not make it into the family album.
A more recent photo from 2011

Oliver Knill, Department of Mathematics, Harvard University, One Oxford Street, Cambridge, MA 02138, USA. SciCenter 432 Tel: (617) 495 5549, Email: knill@math.harvard.edu. twitter, youtube, vimeo, Linkedin Google plus Ello Spring 2015 office hours: Mon-Fri 4-5 PM (Tue later 4:30-5:30) and by appointment.