Michael D. Morley

Michael Darwin Morley (1930 – October 11, 2020) was an American mathematician. Morley was professor emeritus at Cornell University.
His research is in mathematical logic and model theory, and he was best known for Morley's categoricity theorem. He was born in Youngstown, Ohio
Morley died on October 11, 2020 in Sayre, Pennsylvania at the age of 90.