(Q21546793)
Statements
2 references
1817
2 references
Willem Augustus Hecker
9 October 2017
Willem A. Hecker
9 October 2017
12 May 1817Gregorian
1 reference
1 reference
1909
2 references
Willem Augustus Hecker
9 October 2017
Willem A. Hecker
9 October 2017
15 January 1909Gregorian
1 reference
1 reference
1 reference
1 reference
1 reference
Willem Augustus Hecker
0 references
Identifiers
1 reference
7 February 2019
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- commonswiki Category:Willem Augustus Hecker