ALFRED PLEASONTON
On his deathbed he claimed to Kelly that he had been offered command of the Army of the Potomac but was not willing to "pay the price" which he claimed was to accept the terms. Pleasonton, always more of a bureaucrat than an ideologue or strong leader, like many Union officers, only wanted to defang the South so that they could not threaten the rest of the states but was not convinced that "crushing" the rebels was worth the cost or that slavery or the reelection of Lincoln was worth it. There is no independent verification of his receiving the offer, but what is more likely was as the Cavalry Commander of the Army of the Potomac he was "sounded out" on the subject.
Alfred Pleasonton was a United States Army officer and major general of volunteers in the Union cavalry during the American Civil War. He commanded the Cavalry Corps of the Army of the Potomac during the Gettysburg Campaign, including the largest predominantly cavalry battle of the war, Brandy Station. In 1864, he was transferred to the Trans-Mississippi Theater, where he defeated Confederate General Sterling Price in two key battles, including the Battle of Mine Creek, the second largest cavalry battle of the war, effectively ending the war in Missouri. He was the son of Stephen Pleasonton and younger brother of Augustus Pleasonton.