Hello,Welcome to our site and thanks for your question. My name is ***** ***** I will do whatever I can to try to help you.
There really isn't any one particular site where you could advertise. There are many.
Can you tell me what you do know about your ancestor and I will see if I can find anything at all. For instance, his complete name, where he came from in Germany (if you know), when he arrived, who he married, the names of his children and when/where they were born, what he did for a living could all help.