Home›Law Enforcement and Criminal Justice Officials›Era›By Decade›1900sBrowse By1900s1900sComments (0)Reader Challenges (0)1900sFilter Results4 entriesGroup TreeAllAmerican Police Chiefs and Police Reformers (2)Federal Bureau Leaders and Agents (2)Nationality (Geography)AllUnited States (2)NationalityAllAmerican (4)Show ResultsBrowseCompareSelect all 4Eliot Ness1900sMelvin Purvis1900sO. W. Wilson1900sWilliam H. Parker1900sComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.