According to Trebor Jay Tichenor
in his That American Rag: The Story of Ragtime from Coast to Coast
, Harry L. Cook was better known as the professional clown, Slivers. He also worked with the saxophone group, the Six Brown Brothers who recorded on the Victor label. Together with Tom Brown of the said Brown Brothers, they wrote the music for That Moaning Saxophone Rag
(1915) , lyrics Roger Lewis, which was featured in the Montgomery & Stone musical fantasy "Chin-Chin". Harry Cook is shown on the cover of the original sheet music as a black-faced minstrel together with the five saxophone-wielding brothers attired as clowns. Cook's ingenious ragtime medley Shovel Fish
(1907) remains popular and is still recorded down to the present day.