[2][3][5] During World War II, Iversen served in the United States Army as staff sergeant in the 37th Engineer Combat Battalion.
In 1959, FBI associate director William C. Sullivan submitted a nine-page internal memo with book review of The Communists and the Schools to Alan Harnden Belmont.
By implication, book is critical of various aspects of the operation of loyalty-security programs as well as congressional and state investigating committees.
[8] Iversen's principal work, The Communists and the Schools formed part of a Fund for the Republic series on "Communism in American Life".
His writings include: Iversen's book The Communists and the Schools continues to serve as source for books on academic freedom in 20th-Century American history, including Reds at the Blackboard by Clarence Taylor[17] High Priests of Democracy by Marjorie Heins,[18] and Many are the Crimes by Ellen Schrecker.