Bloomington (Ind.) - Sonneborn, standing in front of a microscope and cabinets.
David Ledbetter Nanney Papers
Bologna (Italy) - Snapshot of Ricci with tulip in his teeth.
London (Eng.) - Group portrait of attendees at 7th ISEP conference.
Bloomington (Ind.) - Autographed image of Sonneborn seated informally at his desk.
Bloomington (Ind.) - Informal image of Sonneborn (holding pipe) and wife.
Achber Studio (Laconia, N.H.)
Laconia (N.H.) - Posed portrait of attendees at 1989 Gordon Conference.