Theresa Giannaris, 69, of Quincy, IL died Thursday, May 28, 2020 at her home. She was born July 15, 1950 in Keokuk, IA the daughter of Harold and Ruth Washburn Giannaris. Theresa graduated from high school in 1968 and then graduated from college with a teaching degree and a computer degree. She had been employed at Sheaffer Pen in Ft. Madison, IA and later at Blessing Hospital and Chaddock, both in Quincy, IL. Theresa is survived by four aunts, Shirley (Ken) Dodge of Hamilton, IL, Sheila Kay, Kathleen Boltz and Sharon Cockrell all of Keokuk and several cousins including, Sherri Briggs, Donna Barnes and Carla Montgomery. A graveside service will be held at 11:00 a.m., Thursday, August 6, at Oakland Cemetery in Keokuk. .