article_snippet: Journalist Maria Shriver, a niece of former Rhode Island Rep. Patrick Kennedy, was also on hand for the dedication (left).
article_snippet: Maria Shriver (front left) and Mark Shriver (second left) listen to speeches, next to stone plinths marked with states and the date the entered the union .
article_snippet: Mark Shriver (second left) is a niece of the Kennedy family.
article_snippet: Mark Shriver (second left) mother, Eunice, was the sister of Ted.
article_snippet: Mark Shriver (second left) died in August of 2009 just days before Mark Shriver (second left) younger brother.