His 1st Wife was Catharina Brettenmeyer B.Oct 1797 in Buechelberg, Palatinate, Bavaria, Germany
Married on Aug 14 1826 in Worth Am Germersheimer Landkreis, Rheinland-Pfaltz Germany
She died after 1838 in USA
They had 7 Children
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https://www.familysearch.org/tree/person/details/MLBH-KB2
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Daughter: Catharina Bretemeier
Other information in the record of Catharina Bretemeier from Deutschland Geburten und Taufen
Citation
"Deutschland Geburten und Taufen, 1558-1898," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NP4R-8Y4 : 10 February 2018), Conrad Bretemeier in entry for Catharina Bretemeier, 20 Oct 1797; citing ; FHL microfilm 367,555.

Name: Catharina Bretemeier
Gender: Female
Christening Date: 20 Oct 1797
Christening Place: ROEMISCH-KATHOLISCHE,BUECHELBERG,PFALZ,BAVARIA
Father's Name: Conrad Bretemeier
Mother's Name: Maria Anna Gruber
Citation
"Deutschland Geburten und Taufen, 1558-1898," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NP4R-8YW : 10 February 2018), Catharina Bretemeier, 20 Oct 1797; citing ; FHL microfilm 367,555.
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Name Georgius Petrus Betz
Spouse's Name Catharina Brettmaier
Event Date 14 Aug 1826
Event Place Wörth (Ba. Germersheim), Bayern, Germany
Father's Name Georgi Michaelis Betz
Mother's Name Barbara Daub
Spouse's Father's Name Conradi Brettmaier
Spouse's Mother's Name Anna Maria Gruber
Citation
"Deutschland Heiraten, 1558-1929," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/J4FP-KPG : 11 February 2018), Georgius Petrus Betz and Catharina Brettmaier, 14 Aug 1826; citing Wörth (Ba. Germersheim), Bayern, Germany; FHL microfilm 400,403.

Notes
New York Passenger Lists, 1820-1957 (Came up on son's record.) Family that emigrated: Francois Betz - Jul 1838 - New York, New York Le Havre, France Le Havre, France - Male - Alliance Betz, Pierre; aged 41; male Betz, Chatrine; age 40; female Betz, Francois; aged 10; male Betz, Mathes; aged 9; male Betz, Louis; aged 1; male New York, New York Le Havre, France Le Havre, France - Male - Alliance

New York Passenger Lists, 1820-1957
(Came up on son's record.) Family that emigrated:

Francois Betz - Jul 1838 - New York, New York Le Havre, France Le Havre, France - Male - Alliance
Betz, Pierre; aged 41; male
Betz, Chatrine; age 40; female
Betz, Francois; aged 10; male
Betz, Mathes; aged 9; male
Betz, Louis; aged 1; male
SO FIRST WIFE CATHERINE WAS STILL ALIVE WHEN THEY EMIGRATED.