Wendell Johnson

Speech pathologist at Iowa who applied General Semantics to stuttering and to everyday unhappiness, arguing that a great deal of human misery is a language problem wearing an emotional costume. Also, notoriously, the supervisor of the unethical 1939 "Monster Study".

The most clinically serious application of General Semantics before the therapists arrived — and, in the Monster Study, a permanent reminder that a theory of language can be used to injure.