Jacob Kuechler
Jacob Kuechler was surveyor, conscientious objector during the Civil War, and commissioner of the Texas General Land Office. Kuechler pioneered the science of Dendrochronology to date natural events.
Jacob Kuechler, was born in Schoellenbach, HesseDarmstadt, on February 18, 1823, to engineering and forestry official Albrecht Kuechler.
Source: Wikipedia