Sylvester Weaver (born July 25 1897 in Louisville, Kentucky; died April 4 1960 in Louisville, Kentucky) was an American blues guitar player and pioneer of country blues. On October 23, 1923, he recorded in New York with the blues singer Sara Martin Longing for Daddy Blues / I've Got to Go and Leave My Daddy Behind and two weeks later as a soloist Guitar Blues / Guitar Rag. Both recordings were released on Okeh Records. These recordings are the very first country-blues recordings and the first known recorded songs using the slide guitar style. Guitar Rag (played on a Guitjo) became a blues classic and was covered in the 1930's by Bob Wills and the Texas Playboys as Steel Guitar Rag and became a country music standard too. Weaver recorded until 1927, sometimes accompanied by Sara Martin, about 50 additional songs. On some recordings from 1927 he was accompanied by Walter Beasley and the singer Helen Humes. Weaver