Kinsey collected sexual material from around the world, which brought him to the attention of the U.S. Customs Service when they seized some pornographic films in 1956; he died before this matter was resolved legally.
[19] Kinsey wrote about pre-adolescent orgasms using data in tables 30 to 34 of the male volume, which report observations of orgasms in over 300 children aged from two months up to fifteen years.[24] This information was said to have come from adults' childhood memories, or from parent or teacher observation.
[25] Kinsey said he also interviewed nine men who had sexual experiences with children and who told him about the children's responses and reactions. Little attention was paid to this part of Kinsey's research at the time, but where Kinsey had gained this information began to be questioned nearly 40 years later.
[26] It was later revealed that Kinsey used data from a single pedophile and presented it as being from various sources. Kinsey had seen the need for participant confidentiality and anonymity as necessary to gain "honest answers on such taboo subjects".
[27][28] Years later, the Kinsey Institute said that the data on children in tables 31–34 came from one man's journal (started in 1917) and that the events concerned predated the Kinsey Reports.