HARTLEY RUN, Ohio — The parks department has removed a costume exchange from Saturday's fall parade after parents and volunteers at a rehearsal repeatedly identified children as whoever had worn a borrowed costume before them. The parade will continue on its published route, with masks carried rather than worn until the final block.

Hartley Run's annual parade begins at the municipal recreation center and ends with games at Pioneer Square. This year's program included a “second look” station where 28 children could trade handmade capes, hats and animal masks midway through the route. Organizers intended the exchange to reduce competition over purchased costumes and make the procession less predictable.

During Thursday's rehearsal, 9-year-old Cora Vell gave her silver moth cape to classmate Ben Orr and put on his cardboard fox hood. Cora's father walked past her, addressed Ben as Cora and asked whether she wanted her usual apple cider. He continued speaking to Ben after the hood was raised and Cora stood beside them calling him Dad.

Vell said he could see both children's faces and understood what they were telling him. He nevertheless experienced Ben as his daughter until the cape was removed. He remembered Cora's birthmark, missing front tooth and voice but regarded those details as belonging temporarily to the child in silver. When the cape returned to Cora, recognition returned without confusion about what had happened.

The same change occurred with six other adults and one recreation aide. A mother identified three children in succession as her son while they passed around a papier-mâché crow head. The children themselves continued recognizing parents and one another. They treated the adults' mistakes as funny until an aide tried to send a girl home with the wrong family.

Parade director Lissa Crane stopped the exchange, matched every child to the emergency contact on a numbered wristband and asked families to remove masks. All 28 children left with the correct adults. The department notified parents that evening and assigned a police cadet and two additional staff members to Saturday's check-in, though Crane said no child was missing or harmed.

Recognition normally combines face, voice, movement, expectation and context, said Tomas Rill, a university psychologist who reviewed the organizers' accounts. Costumes can dominate attention, especially in a crowded event, and adults may persist in an error briefly when they expect a familiar child. Rill said the reported certainty after clear contradiction is less typical, but a rehearsal cannot establish how each person processed the scene.

Families disagreed about whether to cancel the parade. Several said the errors were a supervision problem solved by wristbands and fixed costumes. Others asked that children wear ordinary clothes. Crane chose a middle course: participants may dress at home, but no costume will change hands during the event, and adults must confirm wristband numbers before leaving the square.

Cora said she wanted to keep the moth cape because her grandmother had sewn reflective thread into its wings. Ben did not object. He said wearing it had made Mr. Vell remember which library books Cora had overdue and whether she had fed a neighbor's cat. Ben could hear the questions but said they felt directed to someone standing immediately behind him.

Staff inventoried the shared costumes Friday and placed each in a clear bag labeled with its maker. The fox hood, crow head and moth cape showed no added lining, electronics or identifying photographs. Volunteers then removed the exchange sign and used the table for water cups. No adult misidentified children arriving in street clothes for an afternoon program.

Before closing the gym, Crane found a small green coat folded on a chair beneath the bagged costumes. It belonged to no registered participant. Three parents still in the room independently lowered their voices and said Lena had fallen asleep, although none knew a child by that name. The coat remained empty when Crane lifted it, but the chair cushion took several minutes to rise.

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