Siloam Presbyterian Church is a historically Black church that was founded in 1849 by Reverand James A. Gloucester, who was formerly enslaved. From 1849 to 1851, he used his church to harbor fugitives fleeing slavery through the Underground Railroad. Supported by the New Yokr Vigilance Committee, Gloucester provided those seeking freedom with medical aid, food, and clothing. The church even raised funds to support John Brown, the radical abolitionist who later led the raid of Harper's Ferry, VA, commonly quoted as a "dress rehearsal for the Civil War." The congregation of Siloam Presbyterian Church has relocated several times. It has always provided a critical space for community support and activism.

Vol. 5. Plate, C. \[Map bound by Poplar St., Sands St., Jay St., Pearl St., Johnson St., Pierrepont St., East River; Including Middagh St., High St., Cranberry St., Orange St., Nassau St., Pineapple St., Concord St., Clark St., Tillary St., Love Lane, Furman St., Columbia Heights, Willow St., Hicks St., College Pl., Henry St., Monroe St., Clinton St., Liberty St., Washington St., Adams St.], 1880.