After the Spanish–American War, Davis returned to Chicago and worked in the same State Street department store as an errand boy in the executive department. While working he studied law as night. In 1901, he received his law degree from
Northwestern University. On May 13, 1902, Davis was admitted to the
Illinois State Bar Association. In November 1902 he was elected to the
Illinois House of Representatives from the 23rd District as a
Republican and served in 1903 and 1904. Davis continued his political career in November 1904 when he was elected
Cook County Recorder of Deeds on the Republican ticket. After his second term as Recorder, Davis retired from elected office and served as the Vice President of the
Chicago Title and Trust Company. They engaged in multiple skirmishes with
Pancho Villa's forces.
Lightning incident On July 6, 1912, Major Davis and a group of soldiers were struck by lightning at Camp Lincoln outside of Springfield, Illinois. A
Chicago Tribune article states Davis was the most seriously injured and was reported to be in critical condition with his tongue blackened and the soles of his feet burned. All men involved made a full recovery. == World War I ==