Archival Sources

 Aldino Felicani Sacco-Vanzetti Collection. Boston Public Library.
 Sacco-Vanzetti Case Papers. Harvard Law Library.
 H. B. Lehrmann Papers. Harvard Law Library.
 Department of Justice/FBI Sacco-Vanzetti Papers. National Archives, Washington, D.C.
 Massachusetts State Police Sacco-Vanzetti Files. Massachusetts State Archives.