Contains materials from Lefkowitz's election, in 1988, and involvement in the National Academy of Science (NAS). Election to the NAS is one of the highest honors in the scientific field. Current members elect new members and election is based on an individual's contributions to significant original research. Types of materials include correspondence, news clippings, applications, press releases, event programs, meeting minutes, reports, and surveys. Materials date from 1981 to 2013.