James H. Simpson

1813–1883 (age 70)

Army topographical engineer

Biography

James H. Simpson was a pioneering Army topographical engineer whose work proved essential to American exploration and development in the nineteenth century. Born in 1813, Simpson dedicated his professional life to surveying and mapping territories, contributing significantly to the nation's geographic knowledge and infrastructure planning.

Simpson's expertise in topography made him invaluable during a period of rapid westward expansion. His meticulous work helped guide settlement and development across the American landscape. He remained active in his profession throughout his life, passing away in 1883 in Oakland, where his contributions to the nation's growth were honored and remembered.