Thomas L. Penner Credit:
Courtesy of Sorrells Photography
Thomas L. Penner, 83, of Fairport, New York, died Feb. 20, 2026.
“Tom’s work at Kodak spanned the fields of photochemistry and materials science. His research concentrated on the photochemistry of dyes used in color photographic films. He developed methods of dye layering that are considered foundational to antenna dye sensitization, a technique used to improve the efficiency of silver halide photography. He also contributed to advancements in nonlinear optics, low loss waveguides, and inkjet technology. An avid birder with an enduring love for nature, Tom approached both his gardens and complex technical challenges with the same thoughtful patience. A generous listener, he will be deeply missed by family and colleagues.”—Eileen Bauer, daughter
Most recent title: Senior research associate, Kodak Research Laboratories
Education: BSc, chemistry, 1965, and MSc, chemistry, 1966, University of Manitoba; PhD, chemistry, California Institute of Technology, 1970
Survivors: Wife, Anne Hayes-Penner; children, John Penner and Eileen Bauer; two grandsons; sisters, Dorothy Penner, Laura Penner, and Linda Penner
This remembrance has been edited for length, clarity, and style. To recognize your late loved one or colleague, submit obituary information at cenm.ag/obits.
2026 American Chemical Society
