100 years of POTUS press conferences?

NBC and other media are reporting that this year marks the 100th anniversary of the presidential press conference.  On NBC Nightly News a clip of Woodrow Wilson was shown.  Wilson was said to have been shocked when over 100 reporters showed up for a news conference.  

Actually, the first president to hold a news conference on a regular basis was William McKinley.  Teddy Roosevelt continued the tradition.