Dr. Grantly Dick Read

No Artist

Dr. Timothy Leary

Dr. Hans J. Kleinschmidt

Benjamin Spock

Don M. Sloan, M.D.

PD Dr. Dr. Med. L. K. Widmer

Nathan S. Leichmann

Dr. M. Ralph Kaufman

William Zontine, D.V.M

Hal Holbrook

Dr. Samuel L. Feder

Inge Hegeler

Stanley Z. Daniels

Cesare Bartorelli

William Howarth, D.V.M.

Dr. Daniel Blain

Sten Hegeler

Lee Phillips, D.V.M.

Edith Hillman Boxill

Jörgen Schmidt-Voigt

Dr. Howard P. Rome

Klaus Holldack

Dr. Carroll L. Witten

Dr. Jackson A. Smith