Family A 21-46 in The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766
Family B-1294 in The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766
Rus 14-52 in The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766
Family #45 in the 1775 Grimm census.
Family #76 in the 1798 Grimm census.
She was Ludwig Kaiser's second wife. The Reissig family can be traced back to Leitsweiler, Bayern, Germany. Gailroth, her town of birth, is less than a mile from Leisweiler.
Possible Birth Record 
Eva Maria is listed with her family in The Immigration of German Colonists to Denmark and Their Subsequent Emigration to Russia in the Years 1759-1766.  Her father was Johann Georg Reisig, a Tagelöhner from Schwaben. At the time that the family immigrated to Denmark, his wife's name was Maria Barbara, 13 years younger than her husband. She may have been Johann Georg's second wife. There was a five year gap between the birth of Eva Maria, who appears to be the oldest child, and brother Johann Jakob, age 11.
Danish records put her at 16 or 17 in 1761, giving her a birth year of 1747.  This year is consistent in the 1775 and 1798 Grimm census records. I am still looking for a birth record that more closely matches 1747.
While in Denmark, Eva Maria's father passed away. His widow, Maria Barbara, was last listed in a Danish colony on 09 September 1763.  After that, the family drifted apart as children married and determined whether they would leave Denmark for Russia, and where their final destination would be. One brother went to Shcherbakovka, while two others went to Grimm. 
While in Denmark, Eva Maria married fellow traveler Ludwig Kaiser. Although the couple is not shown occupying a household together she is listed as Eva Maria Reisig Kaiser in the departure records for those going to Russia. 
Although she doesn't appear in the 1767 Grimm census, Eva Maria is listed in the 1775 Grimm census with her husband Ludwig Kaiser in family #45. At the time of the census, they had two children living with them:
1775 Grimm Census 
In the 1798 census, she and her husband had three sons, none of whom was Johann Michael:
1798 Grimm Census 
Additionally, the couple had another daughter, Eleonora Kaiser, who was born around 1781 and married before the 1798 census was taken, allowing for her to never be listed in a census with her birth parents. A reconstruction of the three Kaiser lines in Grimm helped identify to which family Eleonora belonged.
Her sons Johann Anton and Johann Heinrich are listed in the 1834 census, but not Johann Michael or Johannes. It's not clear if they were still living, perhaps in a different village, or if they had already passed away. Neither Eva nor Ludwig is listed in the 1834 census, most likely because they had passed away. Had she survived, she would have been 87 years old.
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