Conversation so far:
What happened in 1915?
Jerome Kern introduced him to the writer Guy Bolton, who became Wodehouse's closest friend and a regular collaborator.
what did the two collaborate on?
This was Miss Springtime (1916), which ran for 227 performances--a good run by the standards of the day.
what did they do next?
The team produced several more successes, including Leave It to Jane (1917), Oh, Boy! (1917-18) and Oh, Lady! Lady!! (1918).

Question: were there any other successes?
Self-contained rewrite: Besides Miss Springtime, Leave it to Jane, Oh, Boy! and Oh, Lady! Lady!! were there any other successes for P.G. Wodehouse and Guy Bolton??