Tomás Ramón de Moral (ca. 1791-1847) was an accomplished mapmaker known for his district maps of the State of Mexico, which were part of the first atlas of that state. He is considered one of the first scientific mapmakers in Mexico, due to his use of geodesy as part of the Comisión de Estadística del Estado de México.
De Moral served with the Corps of Engineers from 1822 to 1826 and he was also a professor at the School of Mines, two of the most important bodies associated with surveying and cartography in Mexico. He was also the author of the first book on geodesy published in Mexico; it appeared posthumously, in 1852, as did his maps.
De Moral performed the surveys of the State of Mexico and drew up manuscript maps in the late 1820s and 1830s. Due to a lack of state funds, his first map was only published in 1847, a reduced version of his map of Mexico D. F. The rest of his maps of the state’s districts were published in 1851 and 1852, several years after De Moral’s death. They were published as an atlas by the state government. Few copies of the atlas or its maps exist; there were eight district maps in the atlas along with a four-sheet map of the entire state.