Family #50 in the 1767 Grimm census.
Family #127 in the 1775 Grimm census.
Family #144 in the 1798 Grimm census.
Martin Schröder was born about 1747 in the area around Gelnhausen, Germany. He married Katharina Pea by 1766. Their daughter was 9 months old at the time of the first Grimm census in 1767.
There is a Martin Schröder who married in Büdingen. His bride was "Anna Catharina Bra."  Obviously both female surnames are three letters, and some people would say that in some pronunciations, the surnames can sound similar. Researchers Dr. Brent Mai and Dona Reeves-Marquardt have confirmed that this couple who married in Büdingen was in fact the one that settled in Grimm.  The problem is that no one really knows how she spelled her last name at birth. In their book German Migration to the Russia Volga, they show her surname spelled Bra and Grain. In the 1767, 1775 and 1798 censuses, the name is spelled Pea and Pia.
By the time Martin and Catharina were married, they had already decided to immigrate from Germany to Russia. Most immigrants were required to be married with children or newlyweds just starting their families. Many Volga Germans were married in Büdingen before they immigrated to Russia, as were Martin and his wife Catharina. Martin Schröder is listed in the Kulberg Reports with his wife Catharina and her brother Johann, age 18. From Büdingen, the couple and her brother made their way to Luebeck to board a ship for the first part of their journey. The trio arrived in Oranienbaum, Russia, on 19 July 1766, four months after their marriage. A little less than a year later, the group settled in Grimm, a village near the Volga River.
1767 Grimm Census 
By 1775, Martin and Katharina had four more children. Brother-in-law Johann Heinrich Pea was still living with the family, but Aunt Margaretha is no longer with them.
1775 Grimm Census 
1798 Grimm Census 
There were no Schröders in the 1834 census.  Grimm descendants of the Schröder family are through Martin's daughters. His son Johannes must have either had no sons or moved to another village.
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