The papers of Andrew Gemant are primarily personal in nature and document his artistic endeavors, which include writing novels, poems, short stories, and essays and drawing. His papers also include diaries from his childhood in Hungary and his early years in Germany. Gemants professional career in physics is documented through reprints of his journal articles from the 1920s to the 1960s, professional references and correspondence, and some patents from the 1920s and 1930s, while research notes and journal articles document his work in biochemistry from the 1960s to 1982.

Series I contains Gemant's professional correspondence, patents, book reviews, biochemistry research notes, and reprints of articles from physics and medical journals. The bulk of the professional correspondence dating from the 1920s and 1930s pertain to his research and teaching positions in Berlin, his dismissal from the Technical University of Berlin (Technische Universität Berlin) by the National Socialist (Nazi) government, and his subsequent moves to Oxford, England and the United States. His professional correspondence from the 1950s to the 1980s mostly concern his published books and journal articles. Gemant's research notes and drafts of articles for professional journals were produced during his time as a research associate in biochemistry at Wayne State University.

In Series II are Gemant's diaries, which highlight his childhood in Hungary and include anecdotes from his college days and early teaching career. Other personal documents include his high school and university diplomas and biographical news clippings from the 1960s and 1970s. Photographs include portraits of Gemant and his family in Hungary (1898-1910s), group portraits of Gemant with colleagues at Detroit Edison Company (circa 1940s), and portraits of Gemant at work and at home with his wife Susi (1940s-1960s).

The largest series, Series III, contains manuscripts and reprints of Gemant's published and unpublished novels, poems, short stories, and essays, which constitute the sixteen volumes of his Belletristic Work. Also included are copyright registrations and correspondence concerning the donations of his works to various institutions. His drawings are original pencil sketches and pastels of outdoor scenes, still lifes, and illustrations of his fiction. The folder "Stories in German" (Box 2 Folder 18) also includes photographs of Gemant and colleagues at Oxford University, the Detroit Edison Company, and a conference on electrical innovation (1930s-1940s) and a candid photograph of Gemant and his wife Susi in Oxford, England in 1934.

Series IV contains a scale chart and miniature literature of classics dating from the nineteenth century.