Born: July 15, 1906, Toccoa, Georgia.
Died: February 13, 1979, Lexington, Kentucky.
Buried: Zebulon Cemetery, Toccoa, Georgia.
Theodore was the son of Jesse Lovell Sisk and Cornelia Lou Etta Williams, and husband of Lenora Smith.
He studied music in singing schools run by his father, a minister, at the Shenandoah Conservatory of Music, and at music normals conducted by James H. Ruebush.
His teachers included the Italian tenor Volpi, Dr. Rushing at Shenandoah, Mrs. Long (piano) and Dr. Sherwood.
He began singing young, performing with the Sisk Quartet, the Sisk Family, and the Atlanta Quartet.
From 1928–48, he was music editor for the Sisk Music Company, which specialized in publishing shape note music. He was associated with the Stamps-Baxter Music Company, 1949–53. He also taught hundreds of singing schools.