G. E. Beckner appears likely to have been George Edgar Beckner, traveling photographer, born July 1864 in Waynesboro, Franklin County, Pennsylvania, son of Jacob Beckner and Catherine Shaffer.
Beckner married Emma Susan Ziegler of Leitersburg, Washington County, Maryland, about 1900. They apparently had no children.
The census provides only sketchy snapshots of his travels: 1900 in Leitersburg; 1910 in Toboyne, Perry County, Pennsylvania; 1920 in Washington, DC.
The musicians are posed against an incongruous background of a vaguely sylvan scene.