Finke and King Ernest August of Hannover

This is taken from some notes about Cedarville township in Martin county Mn.. Not very good notes. I am hoping for corrections and maybe something about history of Hannover .??
Family of Finke must have claimed that their godfather was King Ernest August the King of Hannover and England. I have a year to the side. 1847?? This king sponsered every 5th son of every family to get men for his armies. In 1867 the three younger ones came to america an some to Milwaukee, Wi. That is all I have. Interesting though.

Those interested I found a Mrs Henry Niebuhr,
  Fred E. Brandt

M.A.Babcock
Wade
Fitzsimmons
Clark
Petersen
Mather
Candell
Drugan or Drogan
Lund
Dray
Beyer
Buendorf
Dr. Rueben Foster of Janesville, Mn.

Any of this familiar to anyone.

Emil Rudolph Henke ws b. 12. mr 1884 Lindenwerde, germany
Kaiserin {?} Maria Theresa
N.Y. Oct. 8 ? 1902. at 18 years
Angnes ? Henke
son Milton
Marquart
Henke
John Gottlieb May 28, 1857
Gustave and Pauline left Lindenwerder
Held
Nimz
Sampson,
Jacobson
Schmidt
Schimmel
Snow
I shall have to get the book again or ask about the surnames.
but the village Lindenwerder. Can anyone tell me something about it.

Jo Meyer