 The incident is named for the trestle, known as the "Fat Nancy" for the woman who served as the trestle watcher.The trestle's official name was Browning Trestle, for the owners of the property on which it sits, or Two-Runs trestle for the creek that ran below.A local African-American woman who waved to train conductors and occasionally received a shovelful of coal inspired locals to rename the trestle as Fat Nancy's trestle.