After Catherine the Great issued her Manifesto which invited Germans to immigrate to Russia, Johann David wanted to immigrate to Russia, but his wife did not want to leave Germany. This is one of the rare times when a couple probably divorced.
By 1766, Johann David Bleichroth, Lutheran, a farmer from Pfalz, appeared in the Kulberg Reports on page 212. He traveled under document #3202 as a single male.
Some kind of dissolution of his marriage occurred before he left Germany. He departed with others from Luebeck and arrived in St. Petersberg on 08 August 1766.
Although I could not find a divorce record for the couple, his wife, Juliana Sophia Müller remarried Johann Martin Zimmermann and the couple had their first child in December of 1766.
The couple went on to have three more children.
Back in Russia, either in St. Petersburg or shortly after arriving in Grimm, Johann David remarried a woman named Elisabeth, last name at birth unknown for now. She was most likely the daughter of a fellow traveler and perhaps a fellow Grimm resident. The couple was married before the 1767 Grimm census was taken in August of that year.
Head of the Household Johann David Blaikhron [sic?] should be Bleichroth, age 41
Wife Elisabeth Blaikhron [sic], age 24
Child #1 Johann Heinrich Blaikhron [sic], age 3
Child #2 Maria Christina Blaikhron [sic], age 6 months
Their daughter Anna Maria was born after the 1775 census in 1777, but she married before the 1798 census. This means she was never listed under her maiden name with her birth family in a census. There is a gap of 6 years between daughter Maria Christina and the next oldest sibling in the 1798 census, Johann Konrad, age 18. It's possible the couple had one or two more daughters between the ages of 24 and 18 who were also married by 1798.
Johann David's name does not actually appear in the 1798 census, but his widow and his children do. The children are listed as being from Elisabeth Bleichrot's [sic] deceased husband David Bleichrot [sic]. Their youngest child was born in 1791, so he must have passed away between 1791 and 1798.
Germany, Births and Baptisms, 1558-1898. Salt Lake City, Utah: FamilySearch, 2013. Ancestry.com. Germany, Select Births and Baptisms, 1558-1898 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2014. See: https://ancstry.me/2DIJDFf.
"Deutschland Geburten und Taufen, 1558-1898," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NC58-F88 : 28 November 2014), Johann David Bleichroth in entry for Johann Philipp , 26 Oct 1762; citing Speyer, Pfalz, Bavr, Germany; FHL microfilm 193,140.
Pleve, Igor, Lists of Colonists to Russia in 1766, "Reports by Ivan Kulberg," Ministry of Education and Science of Russian Federation, Saratov State Technical University; Published in Saratov, Russia, 2010; page 212, Johann David Bleichroth.
"Deutschland Geburten und Taufen, 1558-1898," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NC5D-WMY : 28 November 2014), Juliana Sophia Muller in entry for Johanna Maria Elisabetha Zimmermann, 16 Dec 1766; citing ; FHL microfilm 193,144.
Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767, Band 2, Herausgegeben von Alfred Eisfeld under Mitarbeit von Sabine Eichwald, Published by the Nordost-Instsitut - 38085 Göttingen, 2005; page 78, family #35.
↑The 1775 and 1798 Census of the German Colony on the Volga, Lesnoy Karamysh, also known as Grimm; Published by the American Historical Society of Germans from Russia, Lincoln, NE, USA; Published 1995; family #113 in the 1775 census.
↑The 1775 and 1798 Census of the German Colony on the Volga, Lesnoy Karamysh, also known as Grimm; Published by the American Historical Society of Germans from Russia, Lincoln, NE, USA; Published 1995; family #133 in the 1798 census.