author
Best known for a classic study of opossums in northeastern Kansas, this physician-researcher left behind a small but memorable mark in natural history writing. His work combines close field observation with the patient, practical tone of mid-20th-century science.

by Henry S. (Henry Sheldon) Fitch, Lewis L. Sandidge
Lewis L. Sandidge is credited as the co-author of Ecology of the Opossum on a Natural Area in Northeastern Kansas, a University of Kansas Museum of Natural History publication that was later distributed through Project Gutenberg. The study, written with Henry S. Fitch, helped document the habits of opossums through careful field research and remains the work most closely associated with his name.
Available records also identify him as Lewis L. Sandidge, M.D., and indicate that he practiced medicine later in life. While the surviving online information is limited, it suggests an unusual path that linked scientific observation in the field with a long professional career in medicine.
Because reliable biographical details are sparse, the picture that emerges is necessarily modest: a physician and researcher whose published work captured a specific corner of American wildlife study with clarity and care.