Tsu-Tzu Tsai, 96, formerly of Dayton, OH. Born March 11, 1921 in Shanghai, China. Loving sister of 5; cherished aunt to several nieces and nephews. Tsu-Tzu received her doctorate from University of Kansas and her post doctorate from Harvard University. She was a brilliant scientist with several patents. She worked for decades as a researcher for the Air Force developing materials that are still being used on fighter jets today. Her specialty was heat resistant material. She will be missed by her family and friends. Cremation is private at the Countryside Funeral Home and Crematory, 950 S Bartlett Rd (at Stearns Rd), Bartlett.