Architect. He was a German architect of the 19th century, who received notoriety for designing a cuckoo clock in 1850, in what is known as the Bahnhausle style. His cuckoo clock, which was designed after a railroad station, was the first to be mass-produced, making the clocks popular outside of Germany. Born the youngest of seven children of an evangelical pastor and dean Jakob Friedrich Eisenlohr, the Elder, his family afforded him a good education. From 1821 to 1826 he studied under two different senior architects before traveling from 1826 to 1828 in Italy to study. His Italian sketches are still available. He began an academical career at Polytechnischen Oberschule in Karlsruhe where, in 1839, he became a building official, and was appointed a college professor of architecture and construction. In 1858 he became the department head of architect at Karlsruhe Institute of Technology. His architectural style was influenced by the Romanesque period style. His first assignment was to assist with the 1829 rebuilding of the ancient Tennenbach Monastery, which was later completely destroyed in 1944 during World War II. In 1839 he was commissioned to design 300 railroad buildings or station-keeper's houses. His first building, the Heidelberg Train Station, which was located on the edge of the city center, was replaced in 1955 by a completely new building and the original one was demolished. Besides the railroad buildings, he designed public and private buildings such as the Oretenberg Castle from 1838 to 1843 and is still standing in the 21st century, the home of the Wolf winery in Wachenheim from around 1840, the Kurhaus and the drinking hall in Badenweiler from 1851 to 1853 and the Freiburg Art and Festival Hall from 1846 to 1854. In 1851 the Protestant collegiate church Lahr or "Our Dear Lady" was rebuilt by him, being extended to the west and uniformly revised in the form of the first construction phase with Gothic semi-circle arches. The structure was badly damaged by World War II artillery fire in the spring of 1945, yet was restored in 1956. He designed two cities that were started before his death, but the plans were altered by the next two architects for financial reasons. He collaborated with sculptor August Kib between 1850 to 1852 to create the red-brick Prussian monument at the Old Cemetery in Karlsruhe, which was unveiled on July 23, 1852 and still standing in the 21st century. A severe storm in 1886 and aerial bombings from Allied Forces during World War II damaged or destroyed many of his masterpieces. An effort is being made to restore these buildings using the stones of the original buildings. Although many of his designs are outdated in style as well as the building materials, college architect students of the 21st century study his work. Several of his original sketches and letters are still available. He became a corresponding member of the Royal Institute of British Architects in 1842 and an honorary member of the Swiss Society of Engineers and Architects in 1832. Although he was personal friends of many German painters, his portrait was painted by Hubert Meyer in 1849. He married Wilhelmine Luis Eugenie von Biedenfeld and the couple had two daughters. He died suddenly at the height of his career.