I have many Brewer Ancestors in Muncy PA. Where is Coganhouse PA where your John Brewer was born? I think that Jersey Shore is in Williamsport, and Muncy is also in Williamsport. My Grandmother, Martha Brewer, b.1884, my greatgrandfather, Thorn Brewer, b.1860, are from Muncy. I have many more names if you are interested and think you have a connection, which I hope you do. I never see anything on this list of Brewers from Muncy PA and there are many of them.