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Abt 1903-1992
1908-1977
1923-
Abt 1904-1994
Abt 1906-1969
Abt 1907-Yes, date unknown
Abt 1909-1989
Abt 1909-Yes, date unknown
Abt 1911-Yes, date unknown
Cal 1881-1954
Cal 1878-1943