[1] Cohn died after a brief illness in Royal Oak, Michigan, on February 4, 2022, at the age of 97.

Cohn served on the Michigan Social Welfare Commission in 1963, the Michigan Civil Rights Commission from 1972 to 1975 (as Chair from 1974 to 1975), and the Detroit Board of Police Commissioners from 1975 to 1979 (as Chair in 1979).

[1] Cohn maintained a full caseload until December 2019, when he announced he was scaling back his caseload and dropping all criminal cases from his docket in favor of civil cases only.

[4] Cohn ruled in Odgers v. Ortho Pharmaceutical Corp.[5] that a manufacturer of oral contraceptives has a duty to warn users of known side effects.

Sitting by designation, in his concurrence in Kruse v. City of Cincinnati,[7] Cohn wrote: "The Supreme Court's decision in Buckley, however, is not a broad pronouncement declaring all campaign expenditure limits unconstitutional.