Collection focuses predominantly on Ben Lindsey's judicial career in Colorado (1900-1927) and later in California (1934-1943) with no substantial personal items. Series 7 covers Lindsey's appointment to the National Recovery Administration as a Labor Compliance Officer in 1934. Series 8 reflects the judge's wide-ranging interests in the current issues of his time, particularly the topic of marriage and family, which was being challenged and expanded. This series also contains a draft of a few chapters from Margaret Sanger's What every girl should know. Sanger was a colleague and friend of Judge Lindsey, who was a fellow outspoken advocate for birth control. A large portion of Series 2 is devoted to the judge's thoughts on companionate marriage, an idea he defined as modern legal marriage that does not necessitate the married couple having children but includes access to birth control; public education of youth on love, sex, and life; and the right to divorce by mutual consent. The collection also contains several items dated after Lindsey's death in 1943 contributed by his wife, Henrietta B. Lindsey, including newspaper and magazine clippings and letters. A newspaper article titled, "The kind of people who become our criminals", bears the following handwritten notation along the top margin: "Taken from Judge Lindsey's briefcase - Mar-26-'43 [the day of Lindsey's passing]" (Box 28, Folder 11).