Family #36 in the 1767 Grimm census.
Family #115 in the 1775 Grimm census.
Family #28 in the 1798 Grimm census.
Kaspar Hepp was born about 1748, probably in the Darmstadt area of what is now Germany. That is where he said he was from when he immigrated to Russia, and it's possible he was born elsewhere and moved to Darmstadt in the years leading up to his immigration.
According to the Kulberg reports, his name was spelled Caspar. He was a weaver from Darmstadt. Document number 2320. At the time of his immigration to Russia, he was single. Caspar departed from the port at Luebeck and arrived in Oranienbaum, Russia, on 22 July 1766 via the Pink "Lev". 
Kaspar probably married his first wife while the couple was still in Oranienbaum. Nearly one year later he was headed to Grimm with wife Anna Maria Hepp and son Johann Friedrich Hepp. Johann Friedrich was almost certainly the son of Anna Maria and a previous husband who did not survive the journey to the Volga River. Johann Friedrich was already 3 years old in 1767, giving him a birth year of 1764. Kaspar may have formally adopted the young boy, or he may have simply told the census taker that the child had the same surname as he did in order to simplify the record keeping.
1767 Grimm Census 
By 1775, Johann Friedrich Hepp was missing from the next census. He would have been only 11 years old, too young to be living in another household. He most likely did not survive. Anna Maria Hepp also did not survive, and Kaspar remarried Maria Elisabeth Saltzmann, a woman 14 years younger than his first wife. Maria Elisabeth also happened to be his neighbor in Grimm. At the time of the census, the couple had one child. Additionally, Maria Elisabeth's mother and brother also lived with them.
1775 Grimm Census 
There is a problem with his age in this census; based on his age in 1767, he should be 8 years older in 1775, or 37. The age "27" is most likely a typographical error. Also note that he has a different wife than the one listed in the 1767 census, and that his son Johann Friedrich is not included in this census entry.
The 1798 census reveals that Maria Elisabeth had three children, Gottfried, Ludwig, and Johannes. His second wife passed away between 1785 and 1791, and he married for a third time, Katharina Schwarz, with whom he had two children.
1798 Grimm Census 
The youngest child from his second wife was 13 years old, and the oldest child from his third wife was 6. This means his first wife passed away between 1785 and 1791. By 1791, Kaspar would have been married to his third wife, and their first child was born in 1792.
There is no Kaspar Hepp in the 1834 census.  He most likely passed away before 1816, and his death was noted in the 1816 male-only census.
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Kaspar is 41 degrees from Massasoit Wampanoag, 24 degrees from Priscilla Alden, 25 degrees from William Bradford, 25 degrees from Mary Brewster, 24 degrees from Mary Cushman, 23 degrees from Elizabeth Howland, 24 degrees from George Soule, 26 degrees from Myles Standish, 24 degrees from Edward Winslow and 30 degrees from Dave Ebaugh on our single family tree. Login to find your connection.