"I had gone to the Palace, like everyone else that night, to see Gully Sutherland"

There do not appear to be any references on the internet to an actual music hall artist called Gully Sutherland.

This character reappears later in Tipping the Velvet, in tragic circumstances. As Sarah Waters generally uses the names of real performers throughout the text, it is quite likely that a performer of this name did exist. 

Does anybody have more information?