John James Dower, 1825-1901, was a mapmaker, print seller, and publisher based in London. Dower was the heir to the more prominent London engraver and mapmaker John Crane Dower, 1791-1847. Dower worked with many prominent middle to late 19th century London map publishers including Weller, Cassell, Bacon, Petermann, and others. He was elected to the Royal Geographical Society in 1854.