Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 02-03-2022.

Submitted and Maintained by Bill Marshall, bill.marshall@verizon.net.


Additions and corrections appreciated (especially with sources). My current list of sources is here. Homepage here.

Index of Medieval and Ancient Lines is here, notable people here, and Gedcom may be downloaded here.

Index of Modern Lines (immigrants to America and their descendants) is here, notable people here, and Gedcom here.


Individual Page

    Person Info
  • Name: Olfert SIOERTS
  • Sex: M
  • Birth: Abt 1661 in Heerenveen, Holland b
  • Death: Abt 1710 in New York City, New York d


    • Parents:

Family:
Marriage: Children:
  1. Heyltje SIOERTS Birth: Abt Sep 1688 Death: Before 5 Mar 1752 in New York City, New York

Bibliography
  1. Roberts, Gary Boyd, Ancestors of American Presidents, First Authoritative Edition. Santa Clarita, CA: Carl Boyer, 1995. Information from this source tagged as [Ref: Roberts USPres [A-Zp][A-Z0-9]*].

Sources for birth and parent Information
date:
abt 1661 [Ref: Roberts USPres ROOSEVELT],
place:
[Ref: Roberts USPres ROOSEVELT]
Sources for death Information
date:
abt 1710 [Ref: Roberts USPres ROOSEVELT],
place:
[Ref: Roberts USPres ROOSEVELT]
Sources with Information about marriage to Margaret CLOPPER
date:
[Ref: Roberts USPres ROOSEVELT],
place:
[Ref: Roberts USPres ROOSEVELT],
child:
[Ref: Roberts USPres ROOSEVELT]
Research Notes:



Pedigree of Olfert SIOERTS
Olfert SIOERTS



Descendants of Olfert SIOERTS
1. Olfert SIOERTS m. Margaret CLOPPER
m. Margaret CLOPPER

2nd generation

2. Heyltje SIOERTS m. Johannes ROOSEVELT
m. Johannes ROOSEVELT father: Nicholas ROOSEVELT mother: Heyltje Jans KUNST

3rd generation

3. Jacobus ROOSEVELT m. Annetje BOGERT
m. Annetje BOGERT father: John BOGERT mother: Hannah PEECK

4th generation

4. James J (Jacobus) ROOSEVELT m. Maria Van SCHAACK
m. Maria Van SCHAACK father: Cornelius Jr Van SCHAACK mother: Angeltje YATES

5th generation

5. Cornelius Van Schaack ROOSEVELT m. Margaret BARNHILL
m. Margaret BARNHILL father: Robert BARNHILL mother: Elizabeth POTTS