I am researching my Wirt line. My 4th/ gr.grandparents were Andrew Wirt -Wert-Wirts m. to Catherine Roush-Rausch. I have just found the name spelled Rauch at the Indian Creek Reformed Church in Montgomery Co.,PA. This is the church that lists my 4/th gr.grandparents baptizing their son Jacob in 1791. Listed in 1758 John Jacob Rauch Bucks Co.,PA Tochikon Union Church.as sponsor for a baptism. At the same church listed is John George, Peter and Maria with the spelling Resch. Listed also Johan Henty Resch d. 1795. My Andrew Wirth was baptised in Bucks Co.,PA Resch is found with the spelling Rauch inter-changed.