An engineer who worked for 59 years at the Sewerage and Water Board of New Orleans, Louisiana, Alexander Allison was an avid and skillful photographer who donated hundreds of his photographs and negatives dating from the 1890s to the 1950s to the New Orleans Public Library's Louisiana Division. Visitors can view all of the negatives online, though this exhibit is akin to a "best of" feature. It contains shots of New Orleans, as well as photos related to Allison's family at home, throughout Louisiana, and in Bay St. Louis, Mississippi, where his parents resided. The "Images of the City" provides visitors excellent shots of New Orleans that would be unfamiliar to most residents of the city today. Several photos, "High River at Carrollton, 1900" and "Flooded Wharves, Sand Bag Levees--near Canal Street, undated" reveal the city's history of flooding. Visitors will find it hard to believe that "The Windmill before the Football Game, 1904" is a photograph of a windmill-driven water well on the Tulane University campus that likely supplied water to the school, since the city's water supply wasn't in operation until 1909.