Portrait of Justice Owen Josephus Roberts, by Alfred Jonniaux[1] from here. The website itself may be copyrighted, however, in the bottom of this pagearchive copy at the Wayback Machine it clearly states "All portraits courtesy of the Supreme Court of the United States". Pictures created by the Supreme Court of US are under Public Domain since the court is part of the federal government.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
Portrait of Justice {{w|Image:Jpiercebuter.jpg}}, from [http://www.supremecourthistory.org/02_history/subs_timeline/images_associates/062.html here]. The website itself may be copyrighted, however, in [http://www.supremecourthistory.org/02_history/subs_ti