Heather, I believe most of the Kolts families that have lived in the U.S. for some time are descended from one couple--Daniel Bernhard Johann Kolz and his wife Frederika Charlotta Maass, who came from Teterow in Mecklenburg-Schwerin.They arrived in New York on 11 January 1854 aboard the George Canning and settled in Kingston, New York.Bernhard died soon after his arrival in this country.Frederika (whose nickname was Mina) died 11 May 1869 in Kingston.
The couple had 12 children, the youngest girl actually being an adopted grandchild.The sons' names were: 1. Johan (or John) who married in Denmark and brought his family to New York later in 1867, 2. Heinrich (Henry) who had a carriage-making business in Kingston, 3. Wilhelm, who died in Teterow before his 8th birthday, 4. Herman, who was a foreman at a brickyard in Kingston, then moved his family to Richmond, Michigan, 5. Ludwig (or Louis)who was living in the King County (New York)Asylum at the time of the 1880 U.S. census, and 6. Ernst (or Frank), who was also a foreman at the brickyard in Kingston and lived there all his life.
I suspect you are descended from one of these sons.I am also a Kolts, being the great-granddaughter of Herman.My father, Robert William Kolts, died two years ago in Salt Lake City.If you let me know more about your Robert Kolts--who were his parents?--I may be able to place you in this family.I've compiled information about many of Bernhard and Frederika's descendants.