Henry G. Wilhelm is an American researcher and author known for his studies of the archival properties of photographic printing processes.[1][2] In 1981, he received a Guggenheim Fellowship in Photographic Studies [3] to continue his work studying photographic processes.[4]
He is the co-author, along with Carol Brower Wilhelm, of the 1993 book The Permanence and Care of Color Photographs: Traditional and Digital Color Prints, Color Negatives, Slides, and Motion Pictures.[5][6] They are the founders of company Wilhelm Imaging Research.