I have a family--John McCaw, age 30, wife Ann Kelly McCaw, age 29, and newborn son Lawrence. Parents born Ireland, baby in Manhattan. Her first child.  Birth cert is 14 July 1873. Address 314 West 21st St. I found them in the 1874 and 1875 Manhattan directories under McCann.  Then they vanish from the face of the earth.  I have combed all sources I can think of. McCaw is misspelled many ways. I believe John is related to my gt gt grandfather Patrick McCaw and Ann is my gt gt grandmother Eliza Kelly's sister. Eliza had a sister Ann the exact same age and two other sisters who married McCaw relatives named McKay. I suspect John and Ann moved to Brooklyn at some point and both died at a fairly young age.  But I can't find anything.  I'd appreciate any ideas.  Thanks very much. Virginia