Calle had heard that one of her favorites, Vermeer's "The Concert," was among the missing.
"I admired her work and thought it would be a wonderful way of injecting into this horrible situation a creative artist who would be very healing," Hawley said. "So I just agreed over the phone. I basically agreed to turn her loose."
"I just remember how striking it was to see such empty spaces in such a crowded museum," Calle said.
The exhibit runs through March.
FBI officials have said they think they know who stole the works in 1990, but none of it has been recovered.