Conversation so far:
What year did Ed Barrow return to baseball?
Ed Barrow returned to baseball in 1910.
What had Ed Barrow been doing before returning to baseball?
Ed Barrow was manager of the Windsor Arms Hotel in Toronto.
What did Barrow's return to baseball involve?
The Eastern League hired Ed Barrow as its president the next year, giving him an annual salary of $7,500. He served in this role from 1911 through 1917.
How did Motreal do under Ed Barrow's management?
Ed Barrow attempted to gain major league status for the league in 1914, but was unsuccessful.
Did Ed Barrow buy the Montreal baseball team?
Was the Montreal Royals 1912 baseball season successful?
The Montreal Royals finished 6th in the 1912 season.
Are there any other interesting aspects about Ed Barrow's baseball career besides managing the Montreal Royals?
As league president, Ed Barrow contended with the creation of the Federal League in 1914, which competed as a major league, and established franchises in International League cities.
Did Ed Barrow succeed in organizing the union league?
Several International League owners opposed Barrow's policies, including his attempt to form the Union League, and felt he was too close personally to Ban Johnson.

Question: What else had he done to try to organize the union league?
Self-contained rewrite: What had Ed Barrow done to try to organize the Union League?