01/28/1916
https://www.presidency.ucsb.edu...
"Hereafter when a vacancy occurs in the position of postmaster of any office of the first, second, or third class as the result of death, resignation, removal, or, on the recommendation of the First As..."
"unless it is established that the character or residence of such applicant disqualifies him for appointment"
"the Postmaster General shall certify the fact to the Civil Service Commission, which shall forthwith hold an open competitive examination to test the fitness of applicants to fill such vacancy"
"I hereby direct that on Sunday, November 14, 1920, the flag of the United States be displayed at half-mast at all military posts, naval stations, on vessels, and on buildings of the United States, as ..."