This site is a project of Kevin I. Slaughter of the Union of Egoists, with support of the Parker family. Additional support has been given by Trevor Blake, Pól O’Sullivan and others. In arrangement with the Parker family, Kevin has taken possession and become archivist of the extant manuscripts, letters, journals and other materials left from Sid Parker’s estate. Some of the additional material has come from the editor’s Union of Egoist archive, the Libertarian Microfiche Project, has been contributed by friends and comrades, or comes from academic institutions such as The Labadie Collection, part of the University of Michigan Special Collections Department.

“Like” the Facebook Page

The following items are being sought to be added to the SEP Archives. Any materials produced by or related to Sidney E. Parker are wanted, though, and please contact us if you have something to offer.

  • Minus One Issue 18
  • Letters written by or to SEP.
  • Full copies of journals, zines, books that include writing by Sidney E. Parker.
  • Selected Writings on Anarchism by Benjamin R. Tucker, edited and introduced by SEP. (We only have a cover page for this in the Archives. Any details would be appreciated.)

Please get in touch if you are looking to reprint material he has written, or have anything to share about Sidney E. Parker. We are specifically looking for letters he’s written or any other possibly unpublished item. Also, if you knew Sid or were influenced in any way, please consider writing something for our online memorial page Ubi Sunt. More information is here.

To contact us, send a message to editor [at]