{
  "file": "sandburg-1941-loc-portrait.jpg",
  "subject": "Carl Sandburg, poet and author of The Family of Man prologue, 1941",
  "source": "Wikimedia Commons / Library of Congress (Office of Emergency Management)",
  "source_url": "https://commons.wikimedia.org/wiki/File:Carl_Sandburg_cph.3a36789.jpg",
  "source_url_direct": "https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Carl_Sandburg_cph.3a36789.jpg/1280px-Carl_Sandburg_cph.3a36789.jpg",
  "license": "Public domain (PD-USGov)",
  "license_url": "https://commons.wikimedia.org/wiki/Template:PD-USGov",
  "rights_holder": "Office of Emergency Management / U.S. Government",
  "attribution": "Office of Emergency Management, U.S. Government",
  "date_taken": "1941",
  "url_verified_at": "2026-05-12",
  "basis": "U.S. federal government work; OEM photograph, no copyright"
}