Howard Francis Taylor, an emeritus professor of sociology and a pioneering scholar on race and intelligence testing, died on March 21, 2023. He was 83.

Victor Laurie, professor of chemistry, emeritus, made numerous contributions to the field of microwave spectroscopy. He died on Sept. 13 at age 88.

Joseph Kohn, professor of mathematics, emeritus, a leader in the field of several complex variables, died on Sept. 13. He was 91.

William Jason Morgan, Princeton University’s Knox Taylor Professor of Geology, Emeritus and a professor of geophysics, emeritus, was a pioneer of the theory of plate tectonics. He died at home July 31.

Daniel Osherson, Princeton’s Henry R. Luce Professor in Information Technology, Consciousness, and Culture, Emeritus and an emeritus professor of psychology, died at home in Princeton on September 4, 2022 from complications due to Parkinson’s. He was 73 years old.

Hale Trotter, an emeritus professor of mathematics, died Jan. 17, 2022. He was 91.