Although opposed to the Union blockade of Southern ports, Gideon Welles duly carried out his part of the Anaconda Plan, largely sealing off the Confederate coastline and preventing the exchange of cotton for war supplies. Most historians consider this a major cause of Union victory in the Civil War.
Mary Ann Bickerdyke, also known as General Grant's "Calico Colonel", was a hospital administrator for Union soldiers during the American Civil War and a lifelong advocate for veterans. She was responsible for establishing 300 field hospitals during the war.
Lucy Lambert Hale, the daughter of Republican Senator John P. Hale, was secretly engaged to Booth a month before the assassination. Some say it was she who invited Booth to attend Lincoln's second inauguration, after which he reportedly told his co-conspirators, "What an excellent chance I had to kill him then."
During the run-up to the Battle of Gaines' Mill, Samuel Zook got behind enemy lines and found that Confederate Maj. Gen. John B. Magruder was conducting an elaborate deception, making it appear that he had significantly more troops than he actually had.
The Battle of Chickamauga, fought on September 18-20, 1863, was the most significant Union defeat in the Western Theater, and involved the second-highest number of casualties after the Battle of Gettysburg. In popular histories, it is often said that Chickamauga is a Cherokee word meaning "river of death".