The ACLU censorship files (18.06 linear feet) contain materials which reflect the ACLU's involvement and interest in guaranteeing that freedom of speech and the press are not abridged. The ACLU fought hard against Post Office censorship, pressure groups, and government to protect the rights of artists, nudists, movie makers, homosexuals, and others to express their views, ideas, and images in books, magazines, and movies. These files are the documentation of that struggle.

This subseries (10.08 linear feet) documents the ACLU's involvement in litigation and public education issues relating to the separation of church and state and religious freedom. The various forms of materials in the subseries include: ACLU policy statements, press releases, memoranda, government documents, clippings, legal briefs, conference proceedings, and correspondence. The files are grouped under headings including: cases, child custody, education, Jehovah's Witnesses, public funds, public schools, released time, religious displays, religious freedom, Sunday blue laws, and transportation.