The first civilian prisoners arrive at the <a href="https://en.wikipedia.org/wiki/Alcatraz_Federal_Penitentiary" id="mwuQ" rel="mw:WikiLink" title="Alcatraz Federal Penitentiary">Federal prison</a> on <a href="https://en.wikipedia.org/wiki/Alcatraz_Island" id="mwug" rel="mw:WikiLink" title="Alcatraz Island">Alcatraz Island</a>.