"All Quiet Along the Potomac Tonight" was a poem first published as "The Picket Guard" by Ethel Lynn Beers in Harper's Weekly, November 30, 1861, attributed only to "E.B." It was reprinted broadly both with that attribution and without, leading to many spurious claims of authorship. On July 4, 1863, Harper's Weekly told its readers that the poem had been written for the paper by a lady contributor whom it later identified as Beers.