He was born Feb. 18, 1920, in Rheindorf, Germany, son of Ernst and Auguste Vogt Hanusa. He and Frances Tempsch were married Oct. 7, 1943, in Germany. She died Oct. 5, 2000.
Hanusa worked at Bayer AG research lab in Germany, and was later recruited as chief chemist by Burkart in 1956. He retired from Burkart (now Textron) in Cairo, Ill.
He was a member of German Club of Southeast Missouri and German Culture Society.
Survivors include two sons, Rolf Hanusa of Georgetown, Lothar Hanusa of Pittsburgh, Pa.; a brother, Wolfgang Hanusa of Leichlingen, Germany; five grandchildren; and two great-grandchildren.
He was preceded in death by two brothers and a sister.
Friends may call at Lorberg Memorial Funeral Chapel from 8 a.m. to service time Saturday.
The funeral will be at 10 a.m. Saturday at the chapel, with the Rev. Thomas Kiefer officiating. Burial will be in Cape County Memorial Park.