It is said that my GGG Grandfather's family was from the Juniata River Valley. I am not from Pennsylvania and have no idea what county / counties that lies in. Can someone steer me in the right direction? The family name is CORNELIUS. My GGG Grandfather was Abraham Corenlius, b. 1839. He supposedly lost both of his parents and some siblings to the "Black Plague" in 1842 (or thereabouts) and was raised by another family in Cambria County. Have any of you heard about this 'Black Plague' or of this family name? I appreciate your help. Beth Johnson Spanaway, WA