She was born March 12, 1922 in Pownal, Maine to Earl and Mary C. Hill Harris.
Survivors include daughters, Linda Nelson, Ginger Cook (Lynn) and Mary Ann Overlander; grandchildren, Roanleigh Carroll, Jamie Lee (Rick) Johnson, Shannon (Bryon) Baccus, Leigh Ann (Aaron) Salge, Brandon (Blanca) Cook and Dannielle Cook; 11 great-grandchildren and one great-great-grandchild.
She was preceded in death by her parents, her husband Fred G. Nelson, three sisters, two brothers, one grandchild and one great-grandchild and her son-in-law, Walter Overlander.
Memorial services will be held at a later date.
In lieu of flowers, the family request memorials in Thora's name may be made to St. Jude's Children's Hospital.
Arrangements entrusted to Grace Funeral Home.