Mr. Carroll is of course, Morris Henry Carroll. He was principal of Monroe Colored High School. “The Voice of the South” was the first African-American radio program aired in Ouachita Parish.
One thing I found is that when the school is referred to in the yearbook, a majority of the time it was referred to as Monroe High School. The only time I see the “Colored” in the name is on a letterhead of a letter to the students in the front of the book from Mr. Carroll.