Hope you have had some success since this post...If not..a suggestion..I have been looking for some time for a Jannet McCarty from NY...I have found the name spelled McArdy, M'Carty, M'Hardy, M'Ardy, M'Cartie, M'chardy, so try to check any variation of the spelling, remember, that some census takers and chuch recorders spelling it as it sounded not neccessarily they way it should be..especially in the early emigration years. Good Luck