“Phantom-like hosts of the Ku Klux Klan spread their white robe over the most historic thoroughfare yesterday in one of the greatest demonstrations the city has ever seen.” So read The Washington Post on the morning of August 9th , 1925. On the previous afternoon, the nation’s capital bore witness to the largest Klan march in the city’s history as tens of thousands of robed Klansmen marched down Pennsylvania Avenue towards the Washington monument, most of them feeling no need to wear a mask.