Conversation so far:
When did George Robey make his London debut?
1891
How old was George Robey when  he made his London debut?
How was George Robey's London debut received by critics?
The theatrical press soon became aware of his act, and The Stage called him a comedian with a pretty sense of humour [who] delivers his songs with considerable point and meets with all success.
Were there any conflicts for George Robey during his London debut?
In early 1892, Robey starred at the Paragon Theatre of Varieties in Mile End, where, according to his biographer Peter Cotes, he stole the notices from experienced troupers.
Are there any other interesting aspects about the George Robey article?
Robey conducted a music hall tour of the English provinces which began in Chatham and took him to Liverpool, at a venue owned by the mother of the influential London impresario Oswald Stoll.

Question: did he have large audiences at those performances?
Self-contained rewrite: Did George Robey have large audiences at those performances?