I believe the Mary Trollinger you refer to is the daughter of Jacob Henry Trollinger, and his second (or third wife). I do not know her name, but he married her in 1785 in Montgomery County, VA. This Jacob Henry (b. 1731) was the eldest son of Adam Trollinger of Ellmendingen, Germany. The other information I have aboput Mary is she was born after 1786, and married John Huffman before 1804. If this corresponds with your information, I would appreciate knowing more if you care to share it. I can also share other information on the family if you like.