Born in Atlantic City, Mr. Kupperman graduated from Pleasantville High School in 1948 and earned a bachelor's in economics in 1952 at the Wharton School of the University of Pennsylvania.
During the Korean conflict, he was an Air Force navigator stationed in Japan, from where he flew combat missions, his wife said. His unit earned several presidential citations, she said.
Mr. Kupperman graduated from Rutgers Law School in 1961 and maintained a private practice in Atlantic City.
For a time, he was a state inheritance-tax supervisor in Atlantic County, his wife said.
In 1989, the Republican Mr. Kupperman supported the Democrat James Florio in his successful gubernatorial race against Republican Jim Courter.
"I don't think Jim Courter has his finger on the pulse," Mr. Kupperman said at the time.
In 1990, Florio named Mr. Kupperman a judge in the Workers' Compensation Court of the New Jersey Department of Labor and Workforce Development.
In 1994, he left that post and his New Jersey career, his wife said, "when we went to St. Thomas" for year-round residence.
Besides his wife, Mr. Kupperman is survived by son David, daughters Wendy Ruden and Carolyn Kupperman, a sister, and a grandson.
Services were set for 1 p.m. Sunday, Feb. 9, at the Williams Funeral Home, 242 N. Church Ave., Chilhowie, Va. 24319.
Donations may be sent to Suncoast Hospice, 5771 Roosevelt Blvd., Clearwater, Fla. 33760.
Condolences may be offered to the family at the funeral home address above.