On August 9 , 1920 Captain Richardson join the Office of the Chief of Cavalry until January 28 , 1921 , when he returned for his third Philippine tour of duty .
In March 1920 , Richardson returned to his permanent regular grade of Captain .
On August 9 , 1920 Captain Richardson join the Office of the Chief of Cavalry until January 28 , 1921 , when Richardson returned for Richardson 's third Philippine tour of duty .
In March 1920 , Richardson returned to his permanent regular grade of Captain .