Kottmann
The Kottmann family of Solothurn founded the Langendorf Watch Company factory in Langendorf in the 1870s. This grew to be the largest watch factory in Switzerland by the turn of the 20th century and was a major watch producer for decades. The company was run by four generations of the Kottmann family: Johann, Charles, Ernst and Rudolf, and Hans and Guido. It was sold to SSIH following the sudden deaths of the latter two in 1964 and 1965.
- Johann Baptist Karl Kottmann (1776-1851)
- Johann Viktor "Jean" Kottmann (September 30, 1822-November 25, 1881) married 1852 Maria Elisabeth Frölicher - Founded Langendorf Watch Company and ran it from 1873-1881
- Karl Joseph Kottmann married Maria Magdalena Katharina Munzinger
- Karl "Charles" Kottmann (October 20, 1844-January 16, 1890) married 1879 Anna Friederika Munzinger - Ran Langendorf Watch Company from 1881-1890
- Dr. Auguste Kottmann (March 4, 1846-July 4, 1904) married 1872? Marie Oswald
- Dr. W? Kottmann
- Ernst "Ernest" Kottmann (December 5, 1874-October 16, 1944) married Dora Stünzi (?-February 17, 1952) - Ran Langendorf Watch Company from 1899-1944 with his brother Rudolf
- Hans Kottmann-Simper (1910-December 10, 1964) married Anneliese Simper - Ran Langendorf Watch Company with his brother from 1943-1964
- Guido Kottmann-Portmann (1913-June 15, 1965) married Elsbeth Portmann - Ran Langendorf Watch Company with his brother from 1945-1965
- Dr. Kurt Kottmann (1877?-1952)
- Rudolf Kottmann (1878-August 9, 1952) - Ran Langendorf Watch Company from 1901-1952
- Franz Jakob Kottmann (1783-1844)