Devoted Abraham Lincoln scholar and state Supreme Court Chief Justice Frank J. Williams acknowledged last week that he"inadvertently" used the opening paragraphs of a 1957 Journal magazine story in an article he wrote on Lincoln in 1993."I feel terrible, mortified, embarrassed," Williams said."I take full responsibility for it." -- MARK ARSENAULT, Providence Journal, April 6, 2004The Providence Journal reported this week that Frank J. Williams wrote an article in 1993 that was substantially similar to another article (by Kenneth B. Roberts) published by the Providence Journal's Sunday magazine in 1957. Williams's 1993 article, which concerned Abraham Lincoln's visits to Rhode Island, appeared in Rhode Island History, which was published by the Rhode Island Historical Society.