Quellen |
- [S10304] Ancestry.com, Web: Niederlande, GenealogieOnline Stammbaumindex, 1000-2015, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2014;).
- [S10348] Ancestry.com, New York, USA, Listen ankommender Passagier und Besatzungen (einschließlich Castle Garden und Ellis Island), 1820-1957, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2010;), The National Archives and Records Administration; Washington, D.C.; Passenger and Crew Lists of Vessels Arriving at and Departing from Ogdensburg, New York, 5/27/1948 - 11/28/1972; Mikrofilm-Seriennummer oder NAID: T715, 1897-1957.
- [S10336] Ancestry.com, Niederlande, Sterbeindex, 1795-1970, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2016;), Stadsarchief Rotterdam; Den Haag, Nederland; Burgerlijke stand (overlijdensakten).
https://www.wiewaswie.nl/personen-zoeken/zoeken/document/srcid/1000000/63707202
- [S10185] Ancestry.com, Stammbaumindex der Geneanet-Gemeinschaft, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2022;).
https://gw.geneanet.org/johanjongman?n=pheijffer&oc=&p=leendert+alexander
- [S10185] Ancestry.com, Stammbaumindex der Geneanet-Gemeinschaft, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2022;).
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