Actually, it was General Nathan Bedford Forrest, late of the Confederacy in 1871.
In October, 1993, the Council of the District of Columbia received "proposed legislation" titled "Albert Pike, Ku Klux Klan Memorial Statue, Removal Resolution of 1992, PR 9-526." The request to have the President of the United States remove this statue was submitted by council member William P. Lightfoot. Mr. Lightfoot claimed
"The United States Congress, on April 4 and 5, 1898, authorized a private organization to place the statue of Albert Pike on the public land of the United States, being falsely informed only that Albert Pike was a leader of white freemasons in the southern states, and 'a distinguished citizen of the United States, an able lawyer and statesman, an accomplished poet, and a brave soldier.'"
Yeah, I knew it was Nathan not William. Just had a temporary brain fade I guess. Best cavelry general on either side in the Civil War.