Here is an update on my search for my Krueger ancestor:
(Thanks to Ronald McCollister and everyone else for being so helpful. I am still trying to see how to find records from Carl Krueger's family in Mecklenburg. I would like to some day find the part of the family that did not immigrate.
His full name was Carl Johann Friedrich Krueger (born Oct 20, 1845) Mecklenburg-Strelitz. His father was Carl Friedrich Krueger.
He married Wilhelmine Kulow, 22 years old from **Mecklenburg**, (Father: Friederich Kulow) at Trinity Lutheran Church in Detroit on Dec 22, 1877.
Carl Friedr. Krueger born 20 October 1845 in ** Mecklenburg Strelitz ** died 3 August 1914 and buried 8 August 1914 (Pastor Reusskamp conducted the funeral service). Cause of death was a stroke. He was 68 years, 9 months and 13 days old. He left behind his widow Wilhelmine nee Kuhlow and the children: Amanda Reinstein, Fritz, Clara, Carl and Minnie.