barney williams (august 20, 1824 – april 25, 1876) was an irish-american actor-comedian popular during the mid decades of the 19th century. he was probably best remembered by audiences of the day for playing ragged pat in j. a. amherst's drama "ireland as it is" and the title role in samuel lover's comic opera "rory o'more". throughout the greater part of his career he was billed along with his wife, the former maria pray, as mr. and mrs. barney williams.