"[Carothers] not only provided inspiration and guidance to men under his immediate direction, but gave freely of his knowledge to chemists of the department engaged in applied research. In addition, he was a brilliant experimentalist. Regarding his personal qualities, he was modest, unassuming to a fault, most uncomplaining, and a tireless worker, deeply absorbed in his work and greatly respected by his associates."

öElmer K. Bolton,
- DuPont's Chemical Director