It was a parade like none Philadelphia had ever seen.
In the summer of 1918, as the Great War raged and American doughboys fell on Europe’s killing fields, the City of Brotherly Love organized a grand spectacle. To bolster morale and support the war effort, a procession for the ages brought together marching bands, Boy Scouts, women’s auxiliaries, and uniformed troops to promote Liberty Loans –government bonds issued to pay for the war. The day would be capped off with a concert led by the “March King” himself –John Philip Sousa.
When the Fourth Liberty Loan Drive parade stepped off on September 28, some 200,000 people jammed Broad Street, cheering wildly as the line of marchers stretched for two miles. Floats showcased the latest addition to America’s arsenal – floating biplanes built in Philadelphia’s Navy Yard. Brassy tunes filled the air along a route where spectators were crushed together like sardines in a can. Each time the music stopped, bond salesmen singled out war widows in the crowd, a move designed to evoke sympathy and ensure that Philadelphia met its Liberty Loan quota.
But aggressive Liberty Loan hawkers were far from the greatest threat that day. Lurking among the multitudes was an invisible peril known as influenza—and it loves crowds. Philadelphians were exposed en masse to a lethal contagion widely called “Spanish Flu,” a misnomer created earlier in 1918 when the first published reports of a mysterious epidemic emerged from a wire service in Madrid.
For Philadelphia, the fallout was swift and deadly. Two days after the parade, the city’s public health director Wilmer Krusen, issued a grim pronouncement: “The epidemic is now present in the civilian population and is assuming the type found in naval stations and cantonments [army camps].”
Within 72 hours of the parade, every bed in Philadelphia’s 31 hospitals was filled. In the week ending October 5, some 2,600 people in Philadelphia had died from the flu or its complications. A week later, that number rose to more than 4,500. With many of the city’s health professionals pressed into military service, Philadelphia was unprepared for this deluge of death.