These are my great-great grandparents. They had a son John William Yeager who was known as William Yeager. I don't know if they were ever married, but their names are listed as William's parents on his death certificate. I am trying to find any information on Bert Yeager, mostly. He is the biggest mystery. His name could have been Albertus or Albert too. There are some hints that he may have lived and died in Hagerstown , MD. But he was born in Pennsylvania. Any help finding documents of any kind would be most appreciated.