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Gustav Christian William Proposch
GP
Gustav
Proposch
1865–1948
GP
Gustav
Proposch
d. 1961
Herbert
Proposch
d. 1956
Adolph
Proposch
d. 1963
Wilhelm
Proposch
d. 1970
ED
Ethel
Deacon
d. 1974
CK
Catherina
Koehler
1870–1964