Beermann of Hanover

My name is Kenneth Beerman...the second "n" was dropped when my father and Grandparents came to the US in 1936 from Hanover.
My Grandparents were Moritz(Morris) and Anna Beermann.They had 2 children Heinz(Henry), my father and Ruth , my aunt. My Grandfather had a brother named Leopold who had a son named Kurt.. My Grandmothers maiden name was Koopman and she was born near Bremen. Thought it would be fun to possibly find some relatives.