Eugene Kupjack was born in Chicago, where he attended art classes at the Art Institute for a decade, beginning when he was 8 years old. He attended Crane College. During World War II, he served as a lieutenant commander and commander in the Office of Naval Research in Washington, making orthopedic instruments, 13 of which are patented in Museum Collections. After he left the Navy in 1948, he worked mostly for Mrs. Thorne until shortly before her death in 1966. In 1959, he was commissioned by the American Institute of Decorators to produce 17 miniature rooms, copies of important settings designed by such interior decorators as William Pahlmann and Mrs. Henry Parish 2d. Mr. Kupjack went on to produce more than 700 period-style miniature rooms from his studio in Park Ridge, working for corporations and collectors seeking traditional rooms with doll-house-scale furnishings one-twelfth normal size. His rooms are in the collections of the Henry Francis du Pont Winterthur Museum in Delaware, the Forbes Magazine gallery in New York City and the Palm Springs Desert Museum in Palm Springs, Calif.