Michael Gray was my great-great-great grandfather through his daughter, Catherine (1856-1880) who married Michael Gray (abt 1853-?) in 1875. From what I could find, Catherine had two sisters-Mary (1854-1885) who married Timothy Clark in 1872 and Ellen (1858/9-?) who married Michael J. O'Hara in 1891. Michael's parents were Thomas and Mary Duddy. Michael Duddy and the Clarks are buried in St. Mary's Cemetery in Trenton, NJ. In the 1860 Census, I found the Duddy's under the spelling, Douty.