I am related through George Seitz (Sites) also. I show him born 1717 and died 1790. I show a wife named Charity who died after 1802. Children were: Frederick 1752-1830, Daniel 1766-1847, Jacob 1768 - 1851, George Sites, Jr. 1774-1854, Abraham 1780 - 1868, and Mary Magdalena 1782-1850.
My tie is through George Sites, Jr., who married Susanna and Magdolina Eva Cooper. George Sites, Jr. & Susanna had 4 children - Barbara, Susanna, Joseph & George Sites III. George Sites III was my 3rd great grandfather. George Sites III & Elizabeth Rohrbaugh had 3 children Amy, Christian and Job. Job Sites & Mary Susan Judy are my great-grandparents. My grandmother was Mary Olive Sites, 9th child of Job & Mary Susan Sites.
I am still trying to fill in pieces of the Sites from George Sites III on back. I have my part of the tree, but not much on the other branches. Can anyone help?