I am delighted to hear from you. My father and I were searching hard and a long time to get these informations. Now we're looking forward to hearing more from you and to exchange our information with yours. The names you mentioned showed us that you have to be related to us. My great-great-grandfather Paul Klingenberg was the brother of your great-grandfather Otto Klingenberg.
To get in contact, please send us your e-mail and mail adress. Best send these to email@example.com and firstname.lastname@example.org. This way would be the easiest to exchange information. My father will send you information about your ancestors and descendants in Germany.