WHO-AM was put on the air by Bankers Life (now the Principal Financial Group) on April 11, 1924.

In 1930, B. J. Palmer, owner of WOC-AM in Davenport, Iowa; had purchased WHO-AM from Banker’s Life, and the two stations operated together as WOC-WHO until a new 50,000-watt transmitter (pictured below) began operating on November 11, 1933.

WOC-AM had ceased broadcasting on the day that the transmitter site pictured below had been put into service, but WOC-AM had returned on the air on another frequency a year later.

Future actor and President of the United States, Ronald Reagan had worked at WHO-AM from 1932 to 1937 as a sportscaster, with his duties including re-creating Chicago Cubs Baseball games; as radio stations did not even broadcast sporting events directly from the venue at this time.

Ronald Reagan had also worked at WOC-AM from 1932 up until he had left for Hollywood to begin his acting career in 1937.