He is married to Dora Boyenga.
They got married at fortasse, somewhere, Verenigde Staten.
Cornelius Kuper
Source: Author: Boyken, Hans-Georg, Title: Wo Sind sie geblieben? - Ostfriesen in Amerika - Vol v., (Publication location: Titonka IA, Publisher: Boyken & Boyken, Publication date: MMV), 12-1923, Repository: Dallas TX Pub. Lib.
"Folkert Harms KUPER
* 8 mar 1839 Holthuserheide/Ostfriesland \\ 1.00 1864 Janna TROFF \\> 1884 near Ackley, IA, the w + on the way in Baltimore, MD \\ 2.oo Ella SINNING (+ 1915) \\+ 20 Mar 1923 Ellsworth, MN ['Lungenentzündung'] \\= near Ackley, IA \\ R: (6)5 s - Cornelius KUPER in Ellsworth, MN, ... - from his 1.oo, ... \\ L/O"
The wording by Herr Boyken seems to indicate all Folkert's progeny are from his 1st marriage, but I cannot be certain - D.A. Navorska - x Oct MMIV - Irving TX
Author: Koens, Rolf u. Christian, Title: Die Familien der Kirchengemeinde Stapelmoor 1709 - 1900, (Publication loction: Westerstede, Niedersachsen, Publisher: Eigenverlag, Publication date: MMV), ISBN 3-9809065-3-1, Seute 298, Repository: Tazewell Co. Gen. & Hist. Soc., Pekin, IL
[Seite. 298]
"2717 Kuper, Folkert, * 8.3.1839 in Holthuserheide, Dienstknecht in Landschaftspolder, S.d. 2726; Prokl. 2.4.1865 Janna Troff, * 10.4.1842, ~ 17.4. in Stapmh., Dienstmagd in Landschaftspolder, T.d. 4355
...
Cornelius * 24.11.1874 in Holthuserheide /= STA Aurich/
...
Hw.: Folkert Harms Kuper hat 1895 für sich, fü seine Frau und den Kindern Grietje, Geerd, Cornelius, Menno, Folkert, und Jan die Ausreise nach Nordamer4ika beantragt /= STA Aurich/"
Author: Zimmermann, Jan-Dirk, Title: Familienbuch der Ev.-ref. Kirchengemeinde WEENER ... 1674-1900, Teilband iii (Publication location: Weener, Niedersachsen, Publisher: Eigenverlag, Publication date: MMXV), Seiten 1489 u. 1490, Repository: Ostfriesen Heritage Soc., Grundy Ctr., IA with holdings in Wellsburg, IA pub. lib.
[Seite 1489]
"9772. Kuiper, Folkert Harms 9779, (OSB Stapelmoor 2717, OSB Landschaftspolder 1500), Dienstknecht zu Landschaftspolder, * 8.3.1839 Holthuserheide, Sohn des Arbeiters"
[Seite 1490]
"Harm Harms Kuiper und Grietje Berends Klaassen, Aufgebot März / April 1865 Weener, oo nach 4.4.1865 Landschaftspolder, Janna Troff 14861, Dienstmagd zu Landschaftspolder, * 10.4.1842 Stapelmoorerheide, Tochter des Arbeiters Geerd Jans Troff und Trientje Jans Kuiper
Kinder: Trientje * 27.12.1867 Holthuserheide
...
[4] Cornelius * 24.11.1874 Holthuserheide
..."
Author: Aanenson, Gregory, Title: "Cornelius Kuper," (Publication location: Kanaranzi, MN, Publisher: Find-a-Grave, Publication date: iv June MMVIII), Repository: The Cloud
Link: https://www.findagrave.com/memorial/27334909/cornelius-kuper
"Photo [of stone] added by Gregory Aanenson Added [photograph of stone with the word "KUPER" chiseled on it] by Gregory Aanenson
Cornelius Kuper Birth 24 Nov 1874 Death 27 Aug 1942 (aged 67) Burial Ebenezer Cemetery Rock County, Minnesota, USA
Memorial ID 27334909
Maintained by: Gregory Aanenson Originally Created by: steamerfan Added: 4 Jun 2008 Find A Grave Memorial 27334909"
Chiseled on the stone: "FATHER CORNELIUS KUPER NOV. 24, 1874 AUG. 27, 1942"
This would suggest a pairing with a MOTHER stone near-by. - D.A. Navorska - xiv June MMXVIII - in proximo Grove, OK.
Author: NN (anonymous), Title: "Minnesota People Records Search," (Publication location: St. Paul, MN, Publisher: MN Hist. Soc., Publication date: accessed xiv June MMXVIII), Repository: The Cloud
Link: http://www.mnhs.org/search/people#?fn=Cornelius&fnt=prefix&ln=Kuper&lnt=prefix&mnt=prefix&rnt=prefix&deathindex.pg=1&wotr.pg=1&ep=deathindex,wotr&fromD=&fromM=&fromY=&toD=&toM=&toY=&st=last_name_slim&sd=asc&cs=default&cd=asc
"Results
Last Name First Middle Related Name Date of Death County of Death Certificate Number
Kuper Cornelius August 27, 1942 Rock County 1942-MN-013204"
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