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Bertha Ernstine Louise Martens
FM
Friedreick
Maas
1869–1948
BM
Bertha
Martens
1881–1971
CM
Carl
Martens
1851–1907
EB
Ernestine
Burow
1862–1938
EM
Edward
Maas
1899–1972
Wilhelm
Martens
1885–1932
+6 more