sentences:  He served as the Chairperson of the Special Committee on Court Congestion, of the State Bar of Michigan from 1977–1978, on the Representative Assembly of the State Bar of Michigan from 1973–1979, as Past Trustee of the Detroit Bar Association Foundation, as Past Director of Detroit Bar Association, as a member of the American Law Institute, and as Director of the American Judicature Society.Cohn was nominated by President Jimmy Carter on May 17, 1979, to the United States District Court for the Eastern District of Michigan, to a new seat created by 92 Stat.1629 and was confirmed by the United States Senate on September 25, 1979, receiving his commission on September 26, 1979.