Someone will probably tell you this, but I will to especially since you are
researching the Eggers family. We have a wonderful Lutheran Pastor in Ohio
named Ernest Eggers.
Now, Mecklenburg was a duchy when it was split between to descendents of one
of the Dukes, called each section Mecklenburg Schwerin and Mecklenburg
Strelitz. They were not part of Pomerania at that time.
Today the parts of Mecklenburg and Pomerania that were recovered from Russia
after the Berlin wall came down are called Mecklenburg Vor Pommeran.
If you have his birthplace you can find the church records of his birth and
his ancestry in the LDS microfilms. The LDS library near you can order the
microfilm for you to use to search for his baptism. The baptism has a lot of
information about the parents and Godparents. My cousin goes there and
researches all the time and brought me a copy of my grandpa's baptism and on another
search she found a list of grandparents of his going back to the 1500s.
Best wishes in your search.
Dolly