"WikiTree"
As a quick side project to play around with web crawlers some more I made a C#/.NET program that scrapes Wikipedia to build family trees. You can view the repository here. The program is run from the windows command line and outputs the generated family tree to both the screen as well as an html file "tree.html" that's saved to the desktop. An example of one of these generated html files is shown below, along with an installer that will install the executable without you needing to clone the wiki.
In the HTML file, the searched person's name will be highlighted in red. At the end it will say the total size of the tree; not all of the people in the tree are shown because indented text is really only good at showing one family line, so the program finds the longest and puts that one up. Each level of indentation represents another generation, and spouses are indicated with the '+' sign (multiple spouses will look like "A + B + C + ..."). Only family members with Wikipedia pages of their own are included in the tree.
In the HTML file, the searched person's name will be highlighted in red. At the end it will say the total size of the tree; not all of the people in the tree are shown because indented text is really only good at showing one family line, so the program finds the longest and puts that one up. Each level of indentation represents another generation, and spouses are indicated with the '+' sign (multiple spouses will look like "A + B + C + ..."). Only family members with Wikipedia pages of their own are included in the tree.
Family Tree for: Abraham Lincoln
Abraham Lincoln
      Thomas Lincoln + Nancy Hanks Lincoln + Sarah Bush Johnston
            Abraham Lincoln + Mary Todd
                  Robert Lincoln + Mary Eunice Harlan
                        Mamie Lincoln
                        Abraham Lincoln II
                        Jessie Harlan Lincoln
                  Edward Lincoln
                  Willie Lincoln
                  Tad Lincoln
            Sarah
      Mordecai Lincoln
      Mary Lincoln
Total tree size (not all shown): 24