J. C. Thompson (fl. c. 1860 - 1890) was a Providence, Rhode Island based publisher active in the later part of the 19th century. Thompson partnered with various other publishers including Henry F. Walling and George Sampson to produce a small corpus of Providence and Rhode Island focused maps, guides, views and directories. More by this mapmaker...

George Sampson (fl. c. 1858 - c. 1930) was a Boston based publisher and printer active in the second half of the 19th century. Sampson initially partnered with George Adams, acquiring a half-share in the Boston Directory or Boston Almanac, and subsequently publishing as Adams, Sampson, and Company. Adams shares were eventually acquired by O.H. Davenport in 1865, when the company named changed to Sampson and Davenport. Working with Davenport, Sampson, expanded the scope of the Boston Directory to incorporate other towns and regions, producing the Massachusetts Register, the New York State Business Directory, the New England Gazetteer, the Roxbury Directory, and the Providence Almanac, among others, as well as various individual maps and guides. Davenport's shares were acquired by A. Murdoch in 1884. As Sampson and Murdoch, the firm expanded again, producing a catalog of over 120 city directories by 1925. The business passed into the hands for R. L. Polk and Company around 1930 and continued to publish directories until about 1980. Learn More...

Henry Francis Walling (June 11, 1825 - April 8, 1889) was an American civil engineer, cartographer, surveyor, and map publisher active from the middle to late 19th century. Walling was born in Providence, Rhode Island. He studied/worked at the Providence Athenaeum before discovering a talent for mathematics and surveying. Walling took a position with Samuel Barrett Cushing (1846 - 1888), a Providence-based civil engineer with whom he issued in 1846 a revision of James Steven's Topographical Map of the State of Rhode-Island. Walling established himself independently around 1850 and immediately began preparing a series of town plans focusing on Bristol County, near Providence. Buoyed by widespread interest in his plans, Walling expanded his operations to Massachusetts, where, by 1857, he had produced no less than 50 town plans. Apparently, Walling's business model involved a contract with town officials to produce a certain number of maps, after which he acquired the right to print and sell additional copies on his own account. This work eventually led to Walling's appointment as Massachusetts "Superintendent of the State Map", a designation that began appearing on his maps around 1855. While Walling's work focused heavily on city and county maps, he successfully published three scarce state maps: Maine, Vermont, and Rhode Island. In 1856, Walling relocated his headquarters to New York City, where he had better access to quality lithographers. The Civil War (1861 - 1865) proved difficult for Walling, and diminished sales may have forced him into a partnership with Ormando W. Gray, with whom he published numerous state, county, and national atlases in the 1860s and 1870s. Around 1880, Walling took a post with the U.S. Coast Survey, with whom he worked on various charts until requesting a transfer in 1883 to the newly formed U.S. Geological Survey. Walling remained with the Geological Survey until his untimely death of a heart attack in April 1889. Learn More...