John David Albert was my great great grandfather. I have lots of information on him and his descendants. Like you, I too believe, (but can’t prove yet), that his parents were George Albert and Susana “Keyser.” An 1806 marriage record for this couple was found in Hagerstown, MD. One of their children’s name was John. This family seems to disappear after 1816.
I also found records of a George “Abbott” who died in 1814 in the War of 1812, Jacob Albert, a Captain in the war, and from MD, died in 1814; and a George Albert, a private, who had enlisted from Hagerstown, MD. But, this George supposedly had a wife named Mary, and he died in 1872.
Researching this family has been difficult. Would like to exchange information if interested. Please e-mail me at firstname.lastname@example.org