Charles Desilver (1815 - May 18, 1876) was an American book and map publisher active during the 19th century in Philadelphia. Desilver, the son of Thomas Desilver of the firm Desilver, Thomas and Co., began is cartographic career as a partner in the firm Thomas, Cowperthwait and Company, the publisher of Samuel Augustus Mitchell's popular New Universal Atlas. Thomas, Cowperthwait and Company was succeeded by Cowperthwait, Desilver and Butler. In 1856, when the previous firm dissolved, Desilver succeeded it by starting his own lithographic firm, acquired Mitchell's copyrights, and began publishing his own variant on the New Universal Atlas. Desilver revised Mitchell's maps with a new grillwork border, his own color scheme, new titles, and some updated political data. Despite a noble pedigree, Desilver's maps did not sell well - possibly because they followed the long and very popular run of Mitchell's own atlases. Desliver continued to publish his atlas until 1859 (though we have heard that he also published an 1862 edition). In 1859 he resold the Mitchell copyrights and printing plates to S. A. Mitchell's son S. A. Mitchell, Jr. The younger Mitchell again updated the plates with his own border and color scheme. He began publishing his own successful atlas in 1860. Desilver continued to operate his firm even after selling the Mitchell copyrights, and his sons Harry and Joseph T., joined the firm in 1875 which was renamed Desilver and Sons. Desilver married Caroline Hill on March 29, 1836, in Philadelphia, with whom he had several children. More by this mapmaker...

James Hamilton Young (December 18, 1792 - c. 1870) was a Scottish-American draughtsman, engraver, and cartographer active in Philadelphia during the first half of the 19th century. Young was born in Avondale, Lanark, Scotland and emigrated to the United States sometime before 1817. Young was a pioneer in American steel plate engraving, a process superior to copper plate engraving due to the increased durability of steel. His earliest known maps date to about 1817, when Young was 25. At the time he was partnered with William Kneass (1780 - 1840), as Kneass, Young and Company, an imprint that was active from 1817 to 1820. He then partnered with with George Delleker, publishing under the imprint of Young and Delleker, active from 1822 to 1823. Young engraved for numerous cartographic publishers in the Philadelphia area, including Anthony Finley, Charles Varle, and Samuel Augustus Mitchell, among others. His most significant work includes maps engraved for Anthony Finley and later Samuel Augustus Mitchell. Mitchell proved to be Young's most significant collaborator. The pair published numerous maps from about 1831 well into the 1860s. Young retired sometime in the mid to late 1860s. In 1840 he registered a patent for an improved system of setting up typography for printing. ˆˆ Learn More...

Samuel Augustus Mitchell (March 20, 1792 - December 20, 1868) began his map publishing career in the early 1830s. Mitchell was born in Bristol, Connecticut. He relocated to Philadelphia in 1821. Having worked as a school teacher and a geographical writer, Mitchell was frustrated with the low quality and inaccuracy of school texts of the period. His first maps were an attempt to rectify this problem. In the next 20 years Mitchell would become the most prominent American map publisher of the mid-19th century. Mitchell worked with prominent engravers J. H. Young, H. S. Tanner, and H. N. Burroughs before attaining the full copyright on his maps in 1847. In 1849 Mitchell either partnered with or sold his plates to Thomas, Cowperthwait and Company who continued to publish the Mitchell's Universal Atlas. By about 1856 most of the Mitchell plates and copyrights were acquired by Charles Desilver who continued to publish the maps, many with modified borders and color schemes, until Mitchell's son, Samuel Augustus Mitchell Junior, entered the picture. In 1859, S.A. Mitchell Jr. purchased most of the plates back from Desilver and introduced his own floral motif border. From 1860 on, he published his own editions of the New General Atlas. The younger Mitchell became as prominent as his father, publishing maps and atlases until 1887, when most of the copyrights were again sold and the Mitchell firm closed its doors for the final time. Learn More...