Goodwill chief executive officer Lewis Chartock said 15 people have come forward to claim the money since it was donated to the St. Louis store in a box filled with Christmas decorations May 8, KTVI-TV, St. Louis, reported Wednesday.
Officials said security camera footage shows two men donating the box along with other items from a trailer being pulled by a green Ford F-150 pickup.
"Everybody's coming out of the woodwork. Everybody donated it and 'it's mine', of course," store manager Tina Wells said. "(But) they have the wrong day. Some of them have the wrong things."
Chartock said it will be up to the courts to decide who rightfully owns the money.
"Goodwill is going to interplead the funds into the registry of the Circuit Court of St. Louis County. Then it's up to everybody to do their best, because we really don't know," he said.