Descendants of Arend Jansz GROEN and Sijtje VOLKERTS
 Tenth Generation 
121. William La FLEUR ... DNA (Cornelia Johanna van der PLAS86, Cornelis van der PLAS47, Jacob van der PLAS33, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
William married someone.
His child was:
+ 142 i. Jennifer La FLEUR ... DNA
123. Willem NAT ... DNA (Nicolaas Cornelis NAT90, Marie van der PLAS48, Jacob van der PLAS33, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Willem married Pieternella Trijntje van SOMEREN.
Children from this marriage were:
143 i. Willem NAT
Willem married Claudina Anna Hendrika BURM.
144 ii. Belinda NAT
Belinda married Alexander Edwin de HOSSON.
145 iii. Nico NAT
Nico married Ilona VISSER.
124. Maria Catharina "Ria" de BOER (Ytje Alberts "Ida" JANSMA97, Maria Catharina van der PLAS55, Jan Cornelisz van der PLAS35, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Ria married Abraham "Bram" RIJBROEK, son of Abraham Lucas Anthonius Lucas RIJBROEK and Louise Johanna BOUWMAN.
Children from this marriage were:
146 i. Anna-Marike RIJBROEK
Anna-Marike married Peter van ARKEL.
147 ii. Marlies Ideke RIJBROEK
Marlies married Herman Johannes van den BOLD.
125. (__?__) van der HAM (Neeltje JANSMA98, Maria Catharina van der PLAS55, Jan Cornelisz van der PLAS35, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1).
(__?__) married Herman SAVELKOEL, son of Herman SAVELKOEL and Anna (__?__). Herman was born on April 5, 1938 in Deventer, , Overijssel, Netherlands and died on June 27, 2018 in Drachten, , Friesland, Netherlands at age 80.
The child from this marriage was:
148 i. Monique SAVELKOEL ... DNA
126. Cornelis Jan "Case" VANDERPLAS (Jan Cornelis "John" van der PLAS99, Cornelis Jan "Cor" van der PLAS56, Jan Cornelisz van der PLAS35, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Case married Katherine Louise WATSON, daughter of John Marshall "Jack" WATSON and Florence Mae METCALFE.
Children from this marriage were:
149 i. Kristine Mae VANDERPLAS
Kristine married Kelly David KENNEDY, son of Richard Earl "Dick" KENNEDY and Judith Ann ZIMMER.
150 ii. Robert John Cornelis VANDERPLAS
129. Cornelis Ferdinand "Bob" VOLKERS (Marie Nelli Johanna "Miep" van der PLAS100, Cornelis Jan "Cor" van der PLAS56, Jan Cornelisz van der PLAS35, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Bob married Lammechien Jantina Catharina "Inez" VORENKAMP.
The child from this marriage was:
+ 151 i. Nicole Aimee VOLKERS
130. Jeanette van DIEPEN (Marie Nelli Johanna "Miep" van der PLAS100, Cornelis Jan "Cor" van der PLAS56, Jan Cornelisz van der PLAS35, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Jeanette had a child.
Her child was:
152 i. Martijn van DIEPEN
Jeanette next married Frank P. WALRAVEN, son of Pieter WALRAVEN. Frank was born in 1968 in , , , Netherlands and died on September 22, 2021 at age 53.
131. Catharina Eliz. "Kitty" NIEMANN (Jan Willem NIEMANN102, Catharina C. van der PLAS57, Jan Cornelisz van der PLAS35, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Kitty married Conrad Lionel CHAMBERS, son of Roy Edwin Medcalf CHAMBERS and Elsa L'AMBRICHE.
Children from this marriage were:
153 i. Luke William NIEMANN
+ 154 ii. John Theophilus NIEMANN
134. Son van der PLAS (Arie van der PLAS114, Cornelis Arend van der PLAS69, Arie van der PLAS37, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Son married someone.
His child was:
155 i. Alex van der PLAS ... DNA
135. Henrika "Rineke" van der PLAS (Cornelis van der PLAS115, Cornelis Arend van der PLAS69, Arie van der PLAS37, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Rineke married Ronald BIJSTER, son of Jelle BIJSTER and Betty PATER.
Children from this marriage were:
156 i. Sven BIJSTER ... DNA
157 ii. Ralf BIJSTER
140. Son BERGSMA (Elizabeth Jacoba Alida van der PLAS116, Jacobus van der PLAS71, Gerrit van der PLAS38, Maartje Jacobs GROEN23, Jacob Jansz19, Jan Claasz15, Claas Jansz9, Jan Arendsz2, Arend Jansz1)
Son married someone.
His child was:
158 i. Rinke BERGSMA ... DNA
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