Missing Mother and Daughter Found Safe in New York City Iona Costello and her daughter Emily had been missing since March 30.

 -- A Long Island mother and daughter missing since March 30 have been found safe in New York City's Upper West Side neighborhood, authorities told ABC News.

Iona Costello and her 14-year-old daughter Emily went missing after leaving Greenport, Long Island, for a trip to New York City.

Family members said the mother and daughter were supposed to spend a week in Manhattan, watching some shows in the theater district. The mother and daughter were recognized Sunday by a front desk manager at the hotel where they were staying, authorities said.

Their disappearance came as Costello, 51, a widow, was involved in a dispute with her husband's adult children from a previous marriage over his will, according to police.

Authorities did not suspect criminality, and no charges were expected in the mother and daughter’s weeks-long disappearance.