The tradition of annually decorating soldiers graves began in the years immediately following the Civil War. First suggested by the ladies of Columbus, Georgia in 1866, the custom went national in 1868 through the adoption of a May 30th date by the Grand Army of the Republic, a Union Veterans organization.
Like many communities throughout the nation, Lafayette, Indiana had been home to a military prison during the Civil War. In February 1862, Confederate prisoners of war, largely from the 32nd and 41st Tennessee Regiments, were held in warehouse buildings for about one month. Prisoners who died there during the prison's short-lived operation were buried in the Greenbush Cemetery. In the spring of 1868, the committee organizing the ceremony in Lafayette received a wreath from a local girl. Attached to the wreath was a short note:
Will you please put this wreath upon some rebel soldier's grave. My dear papa is buried at Andersonville, and perhaps some little girl will be kind enough to put a few flowers upon his grave.