On May 5, 1868, General John A. Logan issued a proclamation calling for "Decoration Day" to be observed annually and nationwide; he was commander-in-chief of the Grand Army of the Republic (GAR), an organization of and for Union Civil War veterans founded in Decatur, Illinois. With his proclamation, Logan adopted the Memorial Day practice that had begun in the Southern states three years earlier.
The first vote was taken on May 16 for the eleventh article. Prior to the vote, Samuel Pomeroy, the senior senator from Kansas, told the junior Kansas Senator Ross that if Ross voted for acquittal that Ross would become the subject of an investigation for bribery. Afterward, in hopes of persuading at least one senator who voted not guilty to change his vote, the Senate adjourned for 10 days before continuing voting on the other articles.
During the hiatus, under Butler's leadership, the House put through a resolution to investigate alleged "improper or corrupt means used to influence the determination of the Senate". Despite the Radical Republican leadership's heavy-handed efforts to change the outcome, when votes were cast on May 26 for the second and third articles, the results were the same as the first.