Conversation so far:
What was a notable event for Kenesaw Mountain Landis?
Kenesaw Mountain Landis struck down a challenge to the Interstate Commerce Commission's jurisdiction over rebating.
Did Kenesaw Mountain Landis retire from his position as judge?
On February 18, 1922, Kenesaw Mountain Landis announced his resignation as judge effective March 1, stating, There are not enough hours in the day for all these activities.
What was Kenesaw Mountain Landis doing in the 1920s?
Although March 4, 1921 began a lull in criticism of Kenesaw Mountain Landis, in April, the judge made a controversial decision in the case of Francis J. Carey.
Who is Walter Q. Gresham?
Walter Quintin Gresham was a United States Circuit Judge of the United States Court of Appeals for the Seventh Circuit.
What was Kenesaw Mountain Landis' position?
Kenesaw Mountain Landis was Walter Q. Gresham's secretary.

Question: When did he get hired?
Self-contained rewrite: When did Kenesaw Mountain Landis get hired?