 Lazaretto Point, directly opposite from Fort McHenry, acquired its name from a smallpox quarantine hospital which once occupied the point.By the time that John Donahoo began construction of a brick tower light in 1831, the hospital was gone; the name was destined to live on in local naval lore, however, as in 1863 a depot was established around the tower for the construction and resupply of lighthouses throughout the bay.Many screw-pile lighthouses were prefabricated at the depot in preparation for erection at their final sites.