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Wilhelm Carl Lormann Proposch
GP
Gustav
Proposch
1865–1948
Gustav
Proposch
d. 1961
Herbert
Proposch
d. 1956
Adolph
Proposch
d. 1963
WP
Wilhelm
Proposch
d. 1970
JP
Janice
Proposch
d. 1947
CK
Catherina
Koehler
1870–1964