From 1937–38, Brown was program director of KWTO-AM in Springfield, where he had been an announcer at age 16.

He founded and was president of Brown Radio-TV Productions, Inc. in Springfield; and was a partner with the Brown Brothers Advertising Agency, with offices in Nashville, Tennessee; St. Louis; and Springfield.

He briefly produced The Eddy Arnold Show on ABC-TV in 1956 before resigning in August of that year after he had won the primary election.

[1] Brown served as delegate to Democratic state and national conventions in 1956, 1960 and 1964.

[2][3] He became a public relations consultant in Washington, D.C. and Los Angeles, California, and was senior vice president of an oil refining company in Los Angeles from 1973 to 1979.