Document number 4913 in Lists of Colonists to Russia in 1766, "Reports by Ivan Kulberg."
Susanna Muth was born in Germany, probably in the Isenburg area, around 1746. She immigrated to the Volga region of Grimm, Russia with her parents and brother in 1766.  According to the Kulberg Reports, the family arrived in Russia on 10 August 1766 on the Russian Pink Vologda which had departed from Luebeck days earlier. If things went according to plan, she and her family remained in the St. Petersburg, Russia, area until the following spring when the new immigrants began their journey to the Volga River, a typically perilous journey, one which many people did not survive.
She is not listed in the 1767 Grimm census with the rest of her family. It may be that she married and was living in another household.
1767 Grimm Census 
I checked one more census to see if Susanna was perhaps inadvertently omitted from the 1767 census. She is not listed with the family in the 1775 census, when she would have been 29 years old.
1775 Grimm Census 
I checked the census for young wives named Susanna who were about 29 years old but didn't find any. There were two who were 34 years old, close but still 5 years off. She could have been omitted from the census, for whatever reason, or she could have married and settled in another village.
The other possibility is that she married and settled in Grimm, but died prior to 1775. She may or may not have had any children.
If she survived the journey from Germany to the Volga, she probably went on to settle in Grimm with the rest of her family. By 1775 she was probably married and living with her husband's family. It would be helpful to review a copy of 1767 Grimm census and see if she is listed with her family in that resource. Susanna was not a very common name in Grimm at that time, so if she wasn't listed with her family, it would be relatively easy to search for a 22 year old named Susanna living in another family. We might be able to ascertain the name of her husband and children.
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