Edward Baker Lincoln was the second son of Abraham Lincoln and Mary Todd Lincoln. He was named after Lincoln's close friend, Edward Dickinson Baker. Both Abraham and Mary spelled his name "Eddy"; however, the National Park Service uses "Eddie" as a nickname and the nickname also appears spelled this way on his crypt at the Lincoln tomb.

Abraham Lincoln was an American lawyer, politician, and statesman, who served as the 16th president of the United States, from 1861 until his assassination in 1865. Lincoln led the United States through the American Civil War, defending the nation as a constitutional union, defeating the insurgent Confederacy, playing a major role in the abolition of slavery, expanding the power of the federal government, and modernizing the U.S. economy.