This collection consists of typed and handwritten pages, likely transcripts, depositions, or technical records related to Lewis Latimer’s work in engineering and patent law. These documents may pertain to legal cases, technical patents, or professional correspondence involving Latimer's contributions to electrical engineering and innovation. Specifically, they illustrate Latimer’s professional work as an expert witness in patent lawsuits, and the challenges facing inventors (particularly an African American and at the time relatively unknown inventor such as Latimer) in trying to persuade businesspeople to put inventions into production.

The Lewis H. Latimer Papers (1870-1929, 1972) [QPL Subgroup]Latimer Family Papers (1870-1996 ) [QPL Full Collection]