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We would like to help you, but to do so we need some information. Who is your ancestor and what is the ID number? What do you already know about this family, ie. name, dates, places?
The ID number is located under the name of your ancestor:
My ancestor is Johann Ferdinand Rudolf Wilhelm Hermann Engel (whew), ID K87J-PMC. I know his birth, christening, marriage, and death dates and places. I know all the data for his wife. I just recently found a child. This child was born 6 years after they were married. I have proof of that in from a birth document. I would like to know how I can go to some of the sources listed for this ancestor and find if he had other children born earlier in their marriage? As you can tell, I can lost as a reasearcher. Thanks so much for your help