 When Japan Publications looked to create a beginners' origami book for American schoolchildren, it recruited Gray to work with Japanese artist Kunihiko Kasahara on what would become "The Magic of Origami", released in 1977 with Oppenheimer credited as photographer.An origami butterfly named "The Alice" was dedicated to Gray by artist Michael LaFosse in 1992.Gray retired from the museum in 1980, after 43 years, but remained involved as a volunteer.