↑ Davis, The History of the Blues, page 59: "The composer of the very first copyright «blues» was Hart Wand, a white Oklahoma violinist and bandleader whose «Dallas Blues» was so named because its melody gave a black porter who worked for Wand’s family «the blues to go back to Dallas.» This was followed a few months later by «Bably Seal Blues», a negligible item by the black vaudeville performer Arthur"Baby" Seals and ragtime pianist Arthur Matthews."