Seeking information on Marcella(or Marsella)Dowd b. c1837 Ireland and d. bef. 1900 NY. She immigrated from Ireland 1861-1862 and settled in NYC. She married Patrick Farley around 1863. They had 7 children all born in NYC. They resided on E. 71st in Manhattan according to the 1880 U.S. census for NY. I could not find her (or her husband) enumerated on the 1900 U.S. census. Family legend has it that she was from County Cavan. Any help greatly appreciated.