"Robert A. \"Bob\" Roberts (April 27, 1879 \u2013 January 21, 1930), sometimes referred to as \"Ragtime\" Bob Roberts, was an American novelty singer in the early years of the 20th century."@en . "1902Z"^^ . "solo_singer" . . . . . "Roberts"@en . . "1879Z"^^ . . "Robert A. Roberts"@en . "1930-01-21Z"^^ . "1879-04-27Z"^^ . "Robert Roberts"@en . "\"Ragtime\" Bob Roberts"@en . "Bob Roberts"@en . . "1930Z"^^ . . . "American singer" . "1902Z"^^ . .