1852 Hannover Census Enquiry (May 21/22)

Please, I am not german speaking, but I wonder if you could help me. I am
searching for family of my father-in-law,

My father in-laws name is Dietmar Herbert Knut, Born on 14 July 1932

His mothers name was(is) Edith Erna Schwager (nee Scheer), born 16 June 1914
His father's name was(is) Herbert Wilhelm Schwager born on 16 March 1903.

The two brothers he is trying to locate living in/around Hannover are:

1. Reinhard Adolf Walter Schwager born around 31 August 1937 in Deutsch
Eulenberg?? (Damals Neumark), and

2. Hans-Joachim Schwager born around 15/01/1945 in Prag (Damals Bohmen und
Maren)

Many thanks

Thank you in anticipation

DAWN SCHWAGER