from assumption.eduArchived 2006-09-14 at the Wayback Machine "The stories told how Sickles had received an anonymous letter on Thursday, February 24th, informing him of his wife's relationship with Key."
The anonymous letter was reproduced in Harper's: Letter image
"From Washington". The Times-Picayune. September 16, 1853. p. 2. Retrieved December 18, 2019.
web.archive.org
from assumption.eduArchived 2006-09-14 at the Wayback Machine "The stories told how Sickles had received an anonymous letter on Thursday, February 24th, informing him of his wife's relationship with Key."